–Where the socks? on the bed.A. is; It’sB. are; TheyC. are; They’reD. is; It

问题补充：

–Where the socks? -- on the bed.

A. is; It’s

B. are; They

C. are; They’re

D. is; It

答案：

A. is; It’s

B. are; They

(答案→)C. are; They’re

D. is; It

解析：句意：——那些袜子在哪里？——他们是在床上。因为主语是the socks名词复数形式，故第一空的谓语用are。第二空代替这些袜子用they,谓语是are，they are的缩写是they’re,故选C。