【题目】—Can you help me with my English?
—Oh, sorry. I ________ all day.
A.am rushed off my feet
B.am struggling to my feet
C.am standing on my own feet
D.am knocking off my feet

【答案】A
【解析】考查情景交际。句意：——你能帮帮我的英语吗？——啊，对不起，我整天忙得不可开交。rush off one's feet习惯用语，表示“忙得不可开交”。故选A。