In our classroom, the pupils work in groups, _______ helps them to learn to co-operate, to share and to develop leadership skill.
| A．which | B．that | C．who | D．what |
I was so familiar with him that I recognized his voice _____ I picked up the phone.
| A．as | B．after | C．the instant | D．while |
It’s reported that the police will soon ____ the case of two missing children.
| A．look into | B．look after | C．look upon | D．look out |
—Can I help you ?
— Please give me two ____________ the eggs.
| A．dozen of | B．dozen | C．dozens of | D．dozens |
you lose the paper document，sign in www.sohunt.com， you might download all you need．
| A．If；which | B．So long as；what | C．In case；where | D．Even if；as |
________ in faraway northwest , this place has its beautiful fresh air .
| A．Being located | B．Having located |
| C．Located | D．Locating |