— How much are these socks?— two dollars.A. It’sB. They’reC. TheyDIt

问题补充：

— How much are these socks?

— two dollars.

A. It’s

B. They’re

C. They

DIt

答案：

A. It’s

(答案→)B. They’re

C. They

D. It

解析：因为socks是复数，所以回答时应该用they。根据句子必须有动词的原则，所以应该用they’re。所以本题选B.