You __________be tired—you’ve only been working for an hour.
| A．must not | B．won’t | C．can’t | D．may not |
Chinese is a language ______ more native speakers than any of the other language.
| A．which | B．has | C．with | D．spoken |
The meeting ________ now is of great importance.
| A．being held | B．to be held | C．held | D．is being held |
--- Where does Mr. Smith come from?
--- I’m not sure, but his English _______ Australia.
| A．sounds | B．suggests | C．tells | D．says |
Facts showed that only when they united ______ the strong enemies.
| A．could they defeat | B．they could defeat | C．they did defeat | D．had they defeat |
Don’t lose heart. It won’t be long ___________ you catch up with others.
| A．since | B．until | C．as | D．before |