Question

【题目】—Mum，do you know where my Dad is?

—I don't know.Perhaps he ________ trees now.

A. planted B. plants

C. will plant D. is planting

Answer 1

【答案】D

【解析】句意：-----妈妈，你知道我的爸爸在哪儿吗？-----我不知道。也许他现在正在植树。根据now判断，时态为现在进行时态，故答案为D。