Question

(北京市2004)

When he ________ home, he saw his mother cleaning the room.

[　　]

A．got up

B．got back

C．got off

D．got on

Answer 1

答案：B
解析：

解析：get up意為“起床”；get back意為“回來”；get off意為“下車”；get on意為“上車”。由句意“他回到家時，看到他媽媽正在打掃房間。”可知應填got back，故選B。