A small car is big enough for a family of three ________ you need more space for baggage.
| A．once | B．because | C．if | D．unless |
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 |