11. Because it rained heavily, we couldn't go to the cinema.

Because + clause, clause: bởi vì 

12. Recycle bins should be put around the school yard.

S +  should be + V3/ed: bị động - modal verb 

13. I suggest putting garbage bins around the school yard.

S + suggest + Ving: đề nghị 

14. Hoa will have to look after her little sister, so she can't go to the movie.

take care of = look after: chăm sóc 

15. I suggest that we should speak English in class.

S +suggest + (that) + S+ (should) + V1: đề nghị 

16. Because it was raining, we decided to postpone our camping.

17. If you don't study harder, you won't pass the final exam.

If 1: If + HTĐ, S + will/can/shall + V1

Unless: trừ khi = If ... not 

18.  I suggest that we should take a shower instead of a bath to save energy.

19. Unless you are careful, you will break the cup.

20. Nam could earn much money because he tried to work hard.

`color{orange}{~MiaMB~}`

Đáp án `+` Giải thích các bước giải:

`11.` Because it rained heavily, we couldn't go to the cinema.

`-` Because _____, _________: Bởi vì ______, ________

`12.` Recycle bins should be put around the school yard. 

`-` Bị động modal verbs

`+` S + modal verbs + be + V3/ed

`13.` I suggest putting recycle bins around the school yard. 

`-` suggest + V-ing: đề nghị làm gì

`14.` Hoa will have to look after her little sister, so she can't go to the movie.

`-` have to + V: phải

`-` take care of `=` look after: chăm sóc

`-` ______, so _______: ______, nên ______

`-` can + (not) + V-inf: có (không) thể

`15.` I suggest that we should speak English in class.

`-` S + suggest that + S + (should) + ....

`+` Ai đó đề nghị (ai đó nên) làm gì

`16.` Because it was raining, we decided to postpone our camping.

`-` Because ______, ________: Bởi vì _____, _______

`=` ____, so ________: ________, nên _______

`-` decide + to V: quyết định làm gì

`-` postpone (v): hoãn

`17.` If you don't study harder, you won't pass the final exam.

`-` Câu điều kiện loại `1` (Có thể xảy ra ở hiện tại hoặc tương lai)

`+` If + S + V(s/es), S + will/can/may/.. + V

`-` If not `=` Unless

`18.` I suggest that we should take a shower instead of a bath to save energy.

`-` S + suggest that + S + (should) + ....

`+` Ai đó đề nghị (ai đó nên) làm gì

`-` instead of: thay vì

`19.` Unless you are careful, you will break the cup.

`-` Câu điều kiện loại `1` (Có thể xảy ra ở hiện tại hoặc tương lai)

`+` If + S + V(s/es), S + will/can/may/.. + V

`-` If not `=` Unless

`20.` Nam could earn much money because he tried to work hard.

`-` ________, so ________: _______, nên ________

`=` ________ because ______: _______ bởi vì _______

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