—Hurry up! The bus is coming.
—Wait a minute. Don’t cross the street the traffic lights are green.
| A．until | B．after | C．while | D．since |
The food in the fridge ________ bad. Throw it away, please.
| A．is smelt terrible | B．smells terrible | C．smells terribly | D．is smelt terribly |
The factory ______ its waste into the river, but now it deals with the waste in a new way.
| A．used to dump | B．is used to dump |
| C．used to dumping | D．is used to dumping |
For everyone’s safety, we ___________ a1ways remember the law against driving after drinking.
| A．could | B．should | C．might | D．would |
Everyone, including her parents, _______ the Wolf Hill, and they will be back this afternoon.
| A．has gone to | B．have gone to | C．has been to | D．have been to |
Wearing white can help people _______when they feel stressed.
| A．fall down | B．calm down | C．look down | D．come down |