This year the number of the US students ____in China has increased by 18.4percent compared to last year.
| A． to study | B． studying | C． having studied | D． studied |
---- ______all your things, Mary! I hate them here and there!
----OK, Mum.
| A．Put up | B．Put on | C．Put down | D．Put away |
----Where is Sandy?
----He ______to anwer the phone. He’ll be back in a minute.
| A．had gone | B．has gone | C．has been | D．went |
Jenny is a nurse and ______in Town Hospital.
| A．works | B．worked | C．had worked | D．working |
You ______swim in this part of the lake. It’s dangerous.
| A．mustn’t | B．needn’t | C．won’t | D．may |
---It’s more and more important to protect our earth.
----I think so. If everyone ______a contribution to it, our world will be more beautifu..
| A．make | B．makes | C．will make | D．make |