-where were you when the UFO arrived?-I was _______ the library.A.at front of B.in front of

问题描述:

-where were you when the UFO arrived?-I was _______ the library.A.at front of B.in front of
A.应该为at the front of

选Bin front of,in the front of,at the front of,in front 这四个介词短语的涵义均与“在前面”有关,但用法区别在于:in front of通常相对于某物体的外部来说,指另外的物体或人位于该物前面,意为“在……前面”.如...