Question

—Our school is beautiful!
—It will be more beautiful if more trees and grass ______ by us.

1. A.
   plant
2. B.
   is planted
3. C.
   are planted

Answer 1

C
考查語態(tài)及主謂一致。句意：我們的學校很漂亮�！�—如果我們種更多的樹木和草，它將會更美麗。英語中當主句為一般將來時態(tài)時，狀語從句中用一般現在時態(tài)表示將來的動作.從句主語trees and grass 是動作的對象，故用被動語態(tài)。trees and grass是并列主語，表達復數含義，故系動詞用復數形式。選C。