You____ to attend the meeting, but you didn't.
A. should come
B. would have come
C. came
D. should have come
查看答案
Can you imagine how____ about it ?No, I can't.
A. could they know possibly
B. could they possibly know
C. they could possibly know
D. possibly they could know
Why is it so dark, There____ be a heavy rain coming.
A. shall
B. may
C. should
D. will
If you had been more careful, you____ have made so many mistakes.
A. won't
B. wouldn't
C. may not
D. mustn't
下列各项中,属于企业动力的有( )。
A. 电力
B. 热力
C. 蒸汽
D. 天然气
微信支付 
支付宝支付