Christina wasn’t saying anything, but the professor smiled at her _______she had done something very clever.
| A．as if | B．now that | C．while | D．though |
Tina is the only foreigner ________to the evening party last night.
| A．invited | B．inviting | C．to invite | D．to be invited |
The poor farmer couple ________money to send their son to go to university，although he was admitted to a key university.
| A．lost | B．supplied | C．prepared | D．lacked |
Harry，why are you driving so slowly？Do ________a bit or we’ll never get home before dark.
| A．turn up | B．pay up | C．speed up | D．call up |
When________，the wholesale vegetable market will be the largest one in China.
| A．completing | B．completed |
| C．being completed | D．to be completed |
Jack has had no ________experience of this kind of job，but he got the job offer just due to his honesty.
| A．previous | B．obvious | C．cautious | D．precious |