It is uncertain side effect the medicine will bring about, although about two thousand patients have taken it．
| A．that | B．what | C．how | D．whether |
This TV set is too loud, will you please _________?
| A．turn down it | B．turn it down | C．to turn it down | D．to turn down it |
- I' m going to school now, Mum, Bye.
-- Just a minute. It's cold outside, _________ your coat, please.
| A．Put on | B．Take off | C．Put up | D．Take down |
_________ away the old books and __________ me that new one.
| A．Bring, bring | B．Bring, take | C．Take, take | D．Take, bring |
Mr Li would like to _________ us an interesting story.
| A．tell | B．talk | C．say | D．speak |
It was not until he came back _____ he knew the police were looking for him.
| A．which | B．since |
| C．that | D．before |