Which of the following is wrong? _________
| A．They didn't find the secret until they got home. |
| B．Not until they got home did they find the secret. |
| C．It was not until they got home that they found the secret. |
| D．Not until did they get home that they found the secret. |
The terrible shaking of the building woke up all the people _______ were asleep.
| A．who | B．whose | C．which | D．whom |
You should always exercise, ______ it’s only ten minutes every day.
| A．as if | B．even if |
| C．unless | D．while |
____ large number of children have joined the book club and ____ number is increasing.
| A．A, a | B．A, the |
| C．The, the | D．The, a |
I don’t ______ the price, as long as the house is in good condition.
| A．set down | B．give away |
| C．add up | D．care about |
Mike has dreamed about taking a bike trip for a long time, so he _____ a new bicycle this afternoon.
| A．is buying | B．was buying | C．would buy | D．has bought |