----I wonder what makes you a successful manager.
----I ______ as a waiter for five years, which contributes a lot to my today’s work.
| A．serve | B．have served |
| C．had served | D．served |
We should do more such exercises in the future, I think, ____ we did yesterday.
| A．as | B．which | C．that | D．than |
____ it will do us harm or good remains to be seen.
| A．If | B．Whether | C．That | D．Where |
The river, ____ are covered with trees, is very long.
| A．which banks | B．of which banks |
| C．whose the banks | D．the banks of which |
He is rather difficult to make friends with, but his friendship, ____, is more true than any other.
| A．once gained | B．when to gain |
| C．after is gained | D．while gaining |
— Did you enjoy yourself at the party?
— Sorry to say I didn’t. It was ____ a meeting than a party.
| A．much of | B．more like | C．less of | D．more or less |