Question

【题目】—Look. My brother is good at .

—Yes, I think so.

A. play tennisB. plays tennisC. playing tennisD. to play tennis

Answer 1

【答案】C

【解析】

句意：——看，我哥哥擅长打网球。——是的，我这样认为。

根据at介词，后用doing动名词作宾语，play tennis动词原形，plays tennis动词第三人称单数形式，playing tennis动名词形式，to play tennis不定式结构；故选C。