_____, experts point out that students can easily fail at starting their business because of a lack of preparations.
| A．But | B．However | C．while | D．though |
—What does the sign over there read?
—No person ________smoke or carry a lighted cigarette ,cigar or pipe in this area.
| A．will | B．may | C．shall | D．must |
It’s a pity that the quarrel________their friendship.
| A．broke up | B．put down |
| C．took away | D．gave up |
The number of traffic accidents caused by drinking is ____ as the number of those caused by non-drinking driving．
| A．as twice many | B．many as twice | C．as twice large | D．twice as large |
In China ______ graduates go abroad to have a further study every year ．
| A．a great deal of | B．many a | C．masses of | D．a plenty of |
----- Where did you get to know her?
---- It was on the farm _______ we worked．
| A．that | B．where | C．there | D．which |