A

1.We might live with the robots in the future

2.I have never eaten crabs before

3.There are 28 days in February

4.Water pollution makes fish die 

D C B A B

C B A

7/9 > 7/11

15/8 < 15/7

6/13 > 12/28

35/63 = 5/9

1.bought

2.will go

3.to do

4.speak

Câu 6: A.

Câu 8:

Chủ ngữ: Sẻ già 

Vị ngữ: lao đến cứu con 

1.My family has never gone to Hoi An before

2.Nick is the most intelligent in my class