________ he felt like ________, he reminded himself that he had a family to support.
A. Every time ; giving up B. At one time ; to give up
C. At a time; gave up D. At that time; giving up
So ________ student ________ that he can work out all difficult problems.
A. clever a ; was he B. a clever; was he C. clever a , he was D. a clever, he was
I’ll never understand how it __________that you were late three times a week.
A. came about B. came out C. came across D. came up
_____ the high price, demands for these cars are very high.
A Because of B In spite of C In case of D Thanks to
The traffic problems we are looking forward to seeing _____ should have attracted the government's attention.
A. solving B. solve C. to solve D. solved
_______ is believed, all the scientists subscribe to the view ______ the increase in the earth’s temperature is due to the burning of fossil fuels to produce energy.
A. It; \ B. As ; that C. It; if D. As; whether