Question

选择题It's strange that he _ without saying good-bye to us. A should have gone out B should go out

另外What do you think is good？ Do you think what is good?
do you think 可以放句首吗？

Answer 1

选择题It's strange that he _ without saying good-bye to us. A should have gone out B should go out
答：A
译：真奇怪，他竟然不和我们告别就不声不响地走出了。
析：It is strange that sb. should do (have done) sth. 是一个句型，也有人将它归入虚拟语气。这里的should有出乎意料的意思，常译作“竟然会”。should have done sth.表示过去发后的事。should do sth. 表示经常发生的情况。

Answer 2

解析：看选项就知道是考查情态动词的用法。情态动词一种特殊的用法就是对事情的推测,A选项的含义是，本应该做.....而实际没做 B选项是情态动词的一般用法

do you think 不可以放句首，如果不是做插入语，后面姐陈述语序的句子。

Answer 3

选择a
这句话的意思是 真奇怪，他本来可以不对我们说再见就离开的。
是虚拟语气。should have gone out。

do you think 不可以放在句首，它是个插入语，要放在句子中间。
所以只能是What do you think is good？

Answer 4

B should解释为竟然 should have done 本应做但没做。do you think 不可以放在句首

Answer 5

选B
strange后用虚拟语气：should do
What do you think is good是对的