---Don’t climb the ladder. It’s broken.
---______
| A．Why not？ | B．Don’t mention it. | C．OK. Thank you. | D．So what? |
It's no longer a question now _____ man can land on the moon.
| A．when | B．that | C．whether | D．how |
—Do you know where the manager lives?
—Yeah, but I have to _____ the telephone book for his address.
| A．search | B．consult | C．request | D．examine |
Whenever his mother spoke to him, ____ was fairly often, he would talk on and on without giving her a chance to speak.
| A．that | B．what | C．which | D．who |
After the new machine was introduced, the factory produced _____ in 2011 as the year before.
| A．twice as many machines |
| B．twice many as machines |
| C．as twice many machines |
| D．as many machines twice |
There ____ a temple on the side of the mountain, didn't there?
| A．would be | B．would have | C．used to have | D．used to be |