Question

-Our city looks more beautiful!
-Yes. Lots of trees and grass ______ since last year.

A．have been planted

B．a(chǎn)re planted

C．will be planted

D．were planted

Answer 1

A

在英文中，有since引導(dǎo)的時(shí)間狀語，句子的主要成分用完成時(shí)態(tài)，表示自從某個(gè)時(shí)候一直做某事，完成時(shí)的結(jié)構(gòu)為have+動(dòng)詞的過去分詞，故本題選A。