Rewrite the sentennces beginning with the word(s) given 1.It's compulsory for students to put their mobiles into schoolbags during lessons Students have.... 2.The student speaks English more fluently than we do We don't speak.... 3.John doesn't sìng as well as his sister John's sister sings.... 4.You speak so fast that I can't catch up with your words You speak too... 5.Mary doesn't have money.She can't buy that Martin bicycle Mary doesn't have enough....

1 Students have to put their mobiles into schoolbags during lessons.

`-` be compulsory + to V `=` have to + Vinf : phải làm gì.

2 We don't speak English as fluently as the students do.

`-` SS bằng: S1 + V + as + adj/adv/N + as + S2.

3 John's sister sings better than he does.

`-` SS hơn trạng từ ngắn: S1 + V + adv + er + than + S2.

4 You speak too fast for me to catch up with your words.

`-` S + V + too + adj/adv/N + for O + to V + O: Ai đó làm gì quá như thế nào cho ai làm gì.

5 Mary doesn't have enough money to buy that Martin bicycle.

`-` S + V + enough + N + to V + O: Ai đó làm gì đủ để làm gì.

1. Students have to put their mobiles into school bags during lessons.

have to + V1: phải làm gì 

2. We don't speak English as fluently as the students.

S + V +as + ADV + as+ O: so sánh bằng

3. John's sister sings better than him.
S  +V + better than + O : so sánh hơn 

4. You speak too fast for me to catch up with your words.

S + V + too + ADV + (for O) + to V; quá... đến nỗi không

5. Mary doesn't have enough money to buy that Martin bicycle.

S + (not) + V + enough + N + (for O) + to V: (không) đủ... để làm gì

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