English is a language that many people around the world ____ not speak perfectly but ____ at least understand.
| A．may; can | B．would; might | C．will; must | D．could; might |
______ all of you are top students, only one will be chosen for the coming competition.
| A．While | B．Since | C．If | D．As |
My mother _____ all the cleaning for my family, but recently she has been too busy teaching to do it.
| A．will do | B．is doing | C．does | D．had done |
Mr. Smiths was busy writing a story, only ______ once in a while to smoke a cigarette.
| A．to stop | B．to have stopped | C．being stopped | D．stopping |
Tom, you play the violin so well. But I ______ you can play the violin.
| A．didn’t know | B．don’t know | C．hadn’t known | D．haven’t known |
For more information, please send an e-mail, ____ you can also include your advice to us.
| A．when | B．where | C．which | D．that |