Question

【题目】When Peter speaks in public, he always has trouble _ the right things to say.

A.thinking ofB.to think ofC.thought ofD.think of

Answer 1

【答案】A

【解析】

考查非谓语动词。句意：当Peter在公众场合说话的时候，他总是很难想到合适的说话的内容。have trouble（in） doing sth 做某事有困难。故选A项。