6. I _______ swim since I was 11.

A. cannot B. could C. will not D. will

(khả năng trong quá khứ dùng could)

7. I am an interpreter. I _______ speak 7 different languages.

A. can B. could C. will can D. can be

(khả năng hiện tại dùng can)

8. One day I _______ run a marathon, but I need to practice first.

A. won’t B. could C. can D. will be able to

(khả năng trong tương lai dùng will be able to)

9. _______ when you were 10?

A. You could swim B. Could you swim C. Could swim D. Will you be able to swim

(khả năng trong quá khứ dùng could)

10. We _______ get to the meeting on time yesterday, because the train was delayed by one hour.

A. couldn’t not B. cannot C. couldn’t D. will be able to

(khả năng trong quá khứ dùng could)

$6:B.$

Since I was $11$`=>`QKĐ

$7:A.$

Câu giới thiệu`=>`HTĐ

$8: D$

One day`=>`TLĐ

$9:B$

Câu hỏi; when you were $10$`=>`QKĐ

$10:C$

Yesterday`=>`QKĐ

$\text{@ThanhTruc2008}$