Question

Answer 1

20 is cooking - cook

21 leave

22 are watching

23 see - are wearing

24 sets

25 studies

26 hear

27 is

28 goes

Ex14 

1 D => drinking

2 B => is boiling

3 C => am going

4 A => does

5 D => are always complaining

Ex15

1 are - are studying

2 plays - is playing

3 stay

4 is going to invite

5 collecting

6 will be

7 am doing

8 go

Answer 2

20.is cooking - cooks   21. leave   22.are watching   23.k chắc lắm nên k làm  24.sets   25.studies   26.am hearing    27.is    28.goes    Ex14:  1.D   2.B   3.D    4.A   5 .D     ex15 : 1.is - is studying    2.plays - is playing     3.stay   4.is going to invite      5 .    collecting     6.will be       7.am doing    8.go

Answer 3

is cooking-cooks

leave

are watching

see-wear

sets

has been studying

hear

is

goes

D=>is drinking

B=>is boiling

A=>does

D=>are alwways complaining

are-are studying

plays-is playing

stay

will invite

collecting

will be

am doing

go