请英语高手帮我做一下这几道题(第二组）

题目

请英语高手帮我做一下这几道题(第二组）
1.________,he had no time to rest．
A．As he was tired
B．If he was tired
C．Tired as he was
D．Now that he was tired
2.The doctors are ________ about the guidelines under which they can carry out euthanasia.
A．at a stretch
B．at a loss
C．at random
D．at length
3.People who can’t _______ between colors are said to be color-blind.
A.separate
B.divide
C.distinguish
D.appointed
4.Robots differ from automatic machines ________ after completion of one specific task,they can be reprogrammed by a computer to do another one．
A．in case
B．in that
C．in which
D．in time
5.Why do you blame him for his poor judgment on the matter ______ he really needs is encouragement?
A．when that
B．since that
C．when what
D．now that
6.You are the most direct young woman I have ever _______.
A.come to
B.come into
C.come over
D.come across
7.If an earthquake occurre

答案

1 C
As 引导的倒装句
2 B
3 A 分开
4 A 为了避免或发生某种情况
5 C when引导时间状语 what 作need的宾语
6 D 碰到
7 D
8 A
9 A
10 A
11 C
12 B 逗号后面是一个一般疑问句
13 C
14 B 先行词是 such时 连接词用as
15 B
16 C what 作happen 的主语
17 B
18 A
19 A 过去分词表被动 被加热
20 B persist in doing sth.坚持做某事