---Did you visit the temple?
---No. We _____it, but we spent too much time shopping.

As a well-known Chinese saying goes, “If you want to be rich, you______ first build roads.”

I ____ have been there, but I ____ not find the time.

—We are worried about Tom. Why hasn’t he come back?
—Don’t worry. He ______ in a traffic jam.

They       have got lost, or had an accident.

A good rest between classes ________ recover brain power to its best and make us perform better in class later.

No person _______ carry a mobile phone into the examination room during the national college Entrance Examinations.

—It’s hard to believe that Jack ________ have fought with the policeman.
—Yes.If one ________ ask for trouble, it can't be helped.

A mistake ______ have been made on our bill. We didn’t order any fish today.

You _____ get the machine repaired this week. I won’t need it until next month.