The school is no longer what it was 20 years ago, ______ it was so poorly equipped.
| A．when | B．which | C．since | D．where |
_________, the experiment is sure to succeed.
| A．If carefully doing | B．If carefully done |
| C．If it done carefully | D．If it doing carefully |
The cost of buying a house in Beijing is higher than ______in Luoyang。
| A．it | B．one | C．that | D．this |
.There are over 58000 rocky objects in _______space，about 900 of which could fall down onto ______earth。
| A．the；the | B．不填；the | C．the； 不填 | D．不填；不填 |
-----Did you enjoy your trip to the town?
-----_________. We had driven more than 3 hours before we found the right way.
| A．Absolutely | B．Go ahead | C．Not at all | D．Quite a lot |
Judging by her ____, Mrs Smith must be a southerner.
| A．pronunciation | B．accent | C．voice | D．sound |