Great changes have taken place in that school. It is no longer it was 20 years ago, it was so poorly equipped.
| A．what; when | B．that; which | C．what; which | D．which; that |
My grandpa has been enjoying good health ever since he _______ smoking.
| A．stops | B．stopped |
| C．has stopped | D．had stopped |
Working in the kitchen for years made Alice ______ a good cook．
| A．for | B．into | C．of | D．as |
Don’t respond to any e-mails ______ personal information, no matter how official they look．
| A．requested | B．request |
| C．requesting | D．to be requested |
—Hi, Albert, I can’t find my reference book!
—Sorry, I ______ it and I guess I put it on the top shelf with my things．
| A．use | B．had used |
| C．am using | D．used |
If you ______ an hour earlier, you wouldn’t have been caught in the rain．
| A．has returned | B．returned |
| C．had returned | D．will return |