(2013·湖南，35)Not once________to Michael that he could one day become a top student in his class.

(2012·潍坊高二检测) Driving a car is not so difficult as you imagine, if you _______ the rules.

It is better to travel 10，000 miles than to read 10，000 books， so it’s important to have real ________ with languages， cultures and societies.

The factory ________ we are going to visit produces computers.

How long do you think it will be ______ the bus arrives here?– No more than five minutes