My neighbour’s dog is fierce and dangerous, so I think he ought to keep it in the yard _____ it attacks any more children.
| A．until | B．since | C．when | D．before |
You can take anything from the shelf and read, but please __________ the books when you've finished with them.
| A．put on |
| B．put down |
| C．put back |
| D．put off |
After the Arab states won independence, great emphasis was laid on expanding education, with girls as well as boys __________ to go to school.
| A．to be encouraged |
| B．been encouraged |
| C．being encouraged |
| D．be encouraged |
There's a man at the reception desk who seems very angry and I think he means __________ trouble.
| A．making |
| B．to make |
| C．to have made |
| D．having made |
He proved himself a true gentleman and the beauty of his __________ was seen at its best when he worked with others.
| A．temper |
| B．appearance |
| C．talent |
| D．character |
"We can't go out in this weather，" said Bob，__________ out of the window.
| A．looking |
| B．to look |
| C．looked |
| D．having looked |