2019年mpacc考试英语真题——连词196

{01}Tom had to be told two or three times ________ he could remember what the teacher said
A.before
B.when
C.until
D.As
解析：A(解析：考查连词。before "到……为止；在……之前"when“当……时候"until"直到……为止”as“当……时候”，until强调动作的延续性，其中tell并非延续性动词，另根据句意“老师说两三遍之后汤姆才能记住。”因此选A。)
本题选A。
{02}He left for lunch________ the clock_________ twelve．
A.while; hit
B.immediately; struck
C.right away; beat
D.at once; knocked
解析：immediately在此用作从属连词，引导时间状语，相当于as soon as。Hit强调“击中”；beat指连续的打击、敲击；strike表示“敲打、撞击”；knock为“敲击”是不及物动词。
本题选B。