Question

【题目】-Do you plant trees in spring, Mike?

-Yes. Many trees ______ in our city every year.

A. are planting B. plant

C. have planted D. are planted

Answer 1

【答案】D

【解析】试题分析：句意：——马克，你们在春天里种树吗？——是的。每年在我们的城市里种很多树。结合句意，主语many trees与谓语plant之间表示被动关系，故此处用被动语态be done。故选D。