问题
选择题
—Your city is so beautiful. It's like a big garden.
—Yes. Many trees and flowers _______ every year.
A. are planting B. are planted C. have planted
答案
答案：B
此题重点考察一般现在时的被动语态的基本用法。其构成是am/is/are+done
搜题请搜索小程序“爱下问搜题”