You（）be careful with the camera. It costs!
| A． | must | B． | may | C． | can | D． | will |
Mr. Green stood up in defence of the 16-year old boy，_________ that he was not the one ____________.
| A．said; blamed | B．saying; to blame | C．to say; to be blamed | D．saying; blaming |
Eating too much fat can ________ heart disease and cause high blood pressure.
| A．result from | B．contribute to | C．attend to | D．devote to |
The boss looked very worried and demanded that the work________before we went home.
| A．wound be finished | B．was finished |
| C．must be finished | D．be finished |
I think you got _______ wrong end of the stick. It’s Tom rather than David who has________good nose for news.
| A．/; the | B．/; a | C．the; the | D．the; a |
----Mum,we are going mountain climbing this afternoon.
-----____________! Sometimes they’ll roll down the hillside.
| A．Watch your step | B．Watch out for stones | C．Sounds great | D．Have fun |