introduction
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grammatical terms
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grammar
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language form
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unit 1 be��1��am/is/are
be ��1��
unit 2 be ��2�� was/were/have been
be ��2��
verbs - main tenses
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unit 3 the present continuous positive��am working
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unit 4 the present continuous negative��am not working
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unit 5 the present continuous question are you working��
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unit 6 the present simple positive��work
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unit 7 the present simple negative��don't work
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unit 8 the present simple question do you work?
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unit 9 the present continuous vs. the present simple��am working/i work
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unit 10 positive and negative imperatives work. don't work
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unit 11 the past simple positive��worked
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unit 12 the past simple negative��didn't work
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unit 13 the past simple question did you work?
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unit 14 the past continuous��was working
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unit 15 the present perfect simple��have worked
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unit 16 the present perfect continuous��have been working
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unit 17 the present perfect with for, since, ever and never��have worked for/since 
for��since. ever��never�ĬF����ɕr
unit 18 the past simple vs. the present perfect simple��worked/i have worked
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unit 19 the past perfect��had worked
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unit 20 the present tenses and the past tenses��work,��am working,��worked,��have worked
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unit 21 the future with will and shall��will/shall work
will��shall����r
unit 22 the future with going to vs. present continuous��am going to work/l am working
going to�Č���r�ͬF���M�Еr
unit 23 the future with will vs. going to vs. present continuous
/will work/l am going to work/l am working
will��going to�Č���r�c�F���M�Еr
unit 24 conditional��if��work,��will
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unit 25 conditional ll lf��worked,��would
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unit 26 tense review 1
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unit 27 tense review 2
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verbs - other forms
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unit 28 infinitive+ to to make
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unit 29 verb _ing making
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unit 30 infinitive+ to or verb-ing to make or making
����ʽto����~��ing��ʽ
verbs - auxiliaries and modals
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unit 31 do
do
unit 32 will and would will/would work
will��would
unit 33 may and might may/might work
may��might
unit 34 can and could can/could work
can��could
unit 35 must, have to and have got to must/have to/have got to work
must. have to��have got to
unit 36 mustn't, needn't, don't have to and haven't got to mustn't/needn't work
mustn't. neetn't. don't have to��haven't got to
unit 37 should and ought to should/ought to work
should��ought to
unit 38 question tags
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verbs - voice
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unit 39 active��make
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unit 40 passive it is made
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unit 41 active vs. passive��make/ it is made
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verbs - other
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unit 42 lt ls/they are vs. there is/there are
it is/they are��there is/there are
unit 43 have and have got
have��have got
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sentence and clause types
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nouns
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adjectives and adverbs
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determiners
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prepositions
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business files
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answer key
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index
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