Where are his books? on his bed.A. It’sB. He’sC. They’reD. His books are

问题补充：

Where are his books? on his bed.

A. It’s

B. He’s

C. They’re

D. His books are

答案：

A. It’s

B. He’s

(答案→)C. They’re

D. His books are

解析：句意：他的书在哪里？his books为复数，所以答语应用They’re on his bed.