Question

A lot of trees ______ on the hill yesterday.

A．a(chǎn)re planted

B．will be planted

C．have been planted

D．were planted

Answer 1

D

考查被動語態(tài)的時態(tài)。選項中各句均為被動語態(tài)，因此不必考慮。句中的時間狀語為yesterday，用一般過去時態(tài)。故選D。