__________ volleyball is her main focus , she's also great at basketball.
| A．Since |
| B．Once |
| C．Unless |
| D．While |
---How did it _________ that all the flowers died ?
---I had forgotten to water them.
| A．come on | B．come up | C．come about | D．come along |
---Have you heard that Tom, as well as his parents, ________ moved to Beijing ?
---Really ? No _________ I haven’t seen him for a long time.
| A．have; doubt | B．have; reason | C．has; choice | D．has; wonder |
_______ Tom, we wouldn’t have been late for the last bus.
| A．If we didn’t wait for | B．If we haven’t waited for |
| C．we hadn’t waited for | D．Had we not waited for |
________ that I was puzzled.
| A．So difficult a question did he ask me | B．Such difficult a question did he ask me |
| C．Such a difficult question he asked me | D．He asked me a so difficult question |
– Are you cleaning my room?
– I can’t help _____. I can’t bear seeing people’s room in a mess!
| A．it | B．this | C．anything | D．so |