I am not feeling myself today! We ____ have drunk that much beer last night.

--- What ____ have happened to Kevin?
--- He might have run into some trouble.

One of our rules is that every student ____ wear school uniform while at school.

Don’t be angry with us. We _____ with you together, but we were busy with our final reports when you called in.

It is hard to say what kind of person he is．Sometimes he is very friendly; at other times he ___ be very cold．

This cake is very sweet. You      a lot of sugar in it.

—May I swim here?  
— No, you _______.  It is dangerous.

The well-dressed lady was caught stealing in the fashion shop, Strangely enough,she       have done such a thing.

My English-Chinese dictionary isn’t in my schoolbag. Where _________ I have put it?

--Jack had prepared for the game for such a long time. We all thought he ________ it.
-- What a pity! He ________ too nervous when playing it.