The first week of university is an exciting time _______ freshmen familiarize themselves with their college and make new friends.
| A．that | B．when | C．what | D．on which |
The murderer was brought in, with his hands _____ behind his back.
| A．being tied | B．having tied | C．to be tied | D．tied |
We saw many students playing on the playground, most of them _____ girls.
| A．are | B．being | C．were | D．have been |
He must have finished his homework for a long time, _____ he?
| A．mustn’t | B．didn’t | C．needn’t | D．hasn’t |
We can see the blue sky and the shining sun. There is no possibility _____ it will rain or snow today.
| A．which | B．where | C．that | D．whether |
Leaders of many countries have been trying to _____ what it is that makes China develop so fast.
| A．carry out | B．figure out | C．break out | D．watch out |