The speed of cars and trucks is _______ to 30 kilometers per hour in large cities in China.
A.limited B.limiting C.limit D.to limit
It suddenly _______ to me that we could use a computer to do the job.
A.took place B.happened C.occurred D.was occurred
—May I smoke here?
—If you _______, choose a seat in the smoking section.
A.must B.should C.may D.can
Don’t bother to look for my umbrella; it will _______ some day.
A.turn down B.turn out C.turn up D.turn over
—Is it safe enough to stand here，Mom?
—No，come a bit _______ to me，honey.
A.close B.closely C.closer D.more closely
_______ on QQ，some people often use “88” for “good-bye”.
A.When chat B.When chatting C.When chatted D.When to chat
