This is a very interesting book. I’ll buy it, _____.
| A．how much may it cost | B．no matter how it may cost |
| C．however much it may cost | D．whatever may it cost |
Children’s curiosity may _____________ many useful inventions.
| A．lead to | B．take place | C．gather in | D．bring away |
—I want to know if I__________ smoke here.
—No, you _________.Could you see the sign “NO SMOKING” there?
| A．can; needn’t | B．must; can’t | C．shall; won’t | D．may; mustn’t |
Everyone has periods in their lives ______ everything seems very hard.
| A．when | B．where | C．which | D．that |
I can’t thank you ______ much because without your help I ______ have won the first prize.
| A．too; wouldn’t | B．very; shouldn’t | C．that; might not | D．so; couldn’t |
The big city has always been the dream career destination of college students. But of late a trend of heading back home ________a part of future job considerations.
| A．has become | B．had become | C．becomes | D．will become |