IV. Put the verbs in the brackets into correct tense or form. 16. Janet usually_____________ the bus to school every day. (take) 17. Don’t make so much noise. We _____________ now. (work) 18. I _____________ the football match on TV last night. (not watch) 19. They _____________ English for seven years up to now. (study) 20. If we keep our environment cleaner, we ______ a happier and healthier life. (live)

IV. Put the verbs in brackets into the correct tenses. (1.5pts)

16. Janet usually ………………takes………..…… the bus to school every day. (take)  ( every day là dấu hiệu thì HTĐ)

17. Don’t make so much noise. We ………are working………………………….… now. (work)   (now là dấu hiệu thì HTTD)

18. I …………didn't watch……………….. the football match on TV last night. (not watch)               ( last night là dấu hiệu thì QKĐ)

19. They ……………have been studying……………….. English for seven years up to now. (study)             ( for seven years up to now là dấu hiệu thì HTHTTD)

20. If we keep our environment cleaner, we ……will live…………… a happier and healthier life. (live)          ( câu điều kiện loại 1)

Công thức:

Hiện tại đơn: (+) S+V/Vs/Ves+...

Hiện tại tiếp diễn: (+) S+tobe+Ving....

Quá khứ đơn: (-) S+didn't+Vinf...

Hiện tại hoàn thành: (+) S+has/have+Ved/V3+....

Điều kiện loại 1: If+S+HTĐ, S+will+V+....