1 making. (make a mistake: phạm lỗi)
2 have been doing ( nhớ là "do judo" chứ k phải "play" hay "go" nha)
3 doing (doing house chores: làm việc nhà)
4 going ( suggest + Ving, go fishing: câu cá )
5 were
6 Doing
7 were doing ( do the cooking: nấu ăn)
8 to make a
9 to go ( go camping: cắm trại)
10 made ( make friends: kết bạn)
11 had done ( do homewwork: làm bài tập)
12 doing ( do yoga: tập yoga, good at+Ving)
13 to make
14 had gone
15 going
16 playing
17 plays - is doing
18 wil go
19 will make
20 would-do ( cấu trúc câu điều kiện loại 2 )
Chúc bạn học tốt ^^