--You didn't go to school yesterday, did you?
--_____, though there was a heavy rain.
| A．Yes, I did. | B．No, I didn't. | C．Yes, I didn't. | D．No, I did. |
The art exhibition is really worth _______，and you’re sure to learn lot from it.
| A．visit | B．to visit | C．visited | D．visiting |
For everyone’s safety，we _______ a1ways remember the law against driving after drinking.
| A．could | B．should | C．might | D．would |
Linda, with 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 |
David didn’t give up ______ he had failed in the experiment four times.
| A．if | B．while | C．though | D．since |