题目

1i will let you know as snow as he -________
A arrives B is going to arrive
C will arrive D is arriving
2paul was doing his homework ______ there was a knock on the door .
who could it be
A befor B while C when D after
(请给原因?）

提问时间：2021-11-02

答案

1,A:as--as--作为一种伴随状语出现,后面用现在时作为将来时表示.2,B:while也有伴随的意思,正当一事发生时伴随着另一事也在进行,或者发生,有时也有对比的意思,另外还表示一种状态,表明“一边怎样,一边怎样”等意思.其...