—The experiment had failed. —I suggest you _________ again.
| A．try | B．trying |
| C．will try | D．would try |
–I’m sorry but I must be going off now. --Ok, __________.
| A．So long | B．Walk slowly | C．Be careful | D．Take your time |
Can you think of some cases ___ drivers obviously knew the traffic rules but didn’t obey them?
| A．why | B．where | C．as | D．which |
It is such a difficult problem _______ no one can work out.
| A．as | B．that | C．so | D．thus |
–Well, where did you spend your night that day? --At __________.
| A．where it is called Grand Hotel | B．what is called Grand Hotel |
| C．which is called Grand Hotel | D．that is called Grand Hotel |
–Have you seen the film? --Yes. I __________ it three times when I was in Tokyo.
| A．saw | B．had seen | C．have seen | D．was seeing |