Question

请帮忙解答3道高中英语题 O(∩_∩)O谢谢

1. He worked until 11 o'clock last night, ___ for the speech .
Really ? He must ___ it now
A. to prepare ,finish B preparing, finish C to prepare ,have finished D preparing,have finished

2. Do be careful when you do that dangerous experiment, ___ will
A don't B aren't C will D shall

3. Before he ___ war ,Argon asked his handsome son,Ferdinand, ___ if he gets killed.
A left to , will revenge B left to,to revenge C left for ,will revenge D left for ,to revenge

Answer 1

D
preparing是分词做状语，表示状态。
must have done表示推测，他一定已经完成了。
C
后面打错了吧，是will you？吧。祈使句都用will you反问。
D
leave for去（参加）……
ask sb. to do sth.请某人做某事
这里意思是：他在赶赴战场前，告诉他的儿子如果他被杀了要报仇。

Answer 2

1.d 2.b 3.d