New York, ________ I visited last year, is a nice old city．
| A．that | B．which | C．when | D．in which |
--Look! The telephone is broken. Someone damaged it ________ purpose.
--That may be right. But perhaps it was broken _________ accident.
| A．on; by | B．by; by | C．on; on | D．by; on |
It was because of bad weather __________ the football match had to be put off.
| A．so | B．so that | C．why | D．that |
It is the first time that I _______ this kind of moon cake.
| A．enjoyed | B．have enjoyed | C．enjoy | D．enjoying |
I don’t think that the necklace is made of diamond, ________?
| A．do I | B．do you | C．isn’t it | D．is it |
My parents have promised to come to see me before I ______ for Africa.
| A．have left | B．leave | C．left | D．will leave |