.
Mary had to work at evenings and weekends. Only in this way _____ complete the reports by the deadline.
| A．was she able to | B．she was able to |
| C．she has been able to | D．has she been able to |
T
hey are teachers and don’t realize ________ to start and run a company.
| A．what takes | B．what they take | C．what takes them | D．what it takes |
I ____ him by surprise and he had no time to think of an excuse.
| A．caught | B．seized | C．held | D．took |
I’m sorry to ______ you, but can you tell me how to get to the library?
| A．bother | B．puzzle | C．annoy | D．worry |
Remember that there is still one point ______we must make clear at the conference tomorrow.
| A．where | B．why | C．when | D．that |
The number of children who have lost parents due to AIDS ______to rise to over 26 million in 2011.
| A．are expected | B．is expecting | C．are expecting | D．is expected |