What great trouble the boy _____his father to give up smoking!
| A．had to persuade | B．had persuaded | C．had persuading | D．had persuade |
I’ve worked with children before,so I know what _________ in my new job.
| A．expected | B．to expect |
| C．to be expecting | D．expects |
________ these experiments were successfully completed would we think of going into humans.
| A．If only | B．Only if | C．So that | D．Even if |
Is there a hospital around _________ I can get some medicine for my wounded hand?
| A．what | B．that | C．which | D．where |
the weather, the sports meet will be held on time.
| A．In favor of | B．Regardless of | C．Apart from | D．Due to |
Mandy, ___ university student from Canada, teaches us ___ history of western art.
| A．an; the | B．a; the | C．the; / | D．the; a |