The wild flowers looked like a soft orange blanket_____________-the desert.
| A．covering | B．covered | C．cover | D．to cover |
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 |
John must have forgotten to return the magazine to the library yesterday, _________?
| A．mustn’t he | B．hasn’t he | C．haven’t he | D．didn’t he |