We should remember to save water resource and not to leave the water_____all the time.
---Mary, I heard there was an explosion in Luzhou. Could you tell me how it _______?---Sorry, I don’t know much about it either.
Can you tell me the way you think of________ the problem?
----Do you mind if I record your lecture?----_______. Go ahead.
I can’t stand _______ with Jane in the same office. She just refuses _______ talking while she works.
The _____ on her face suggests that she didn’t pass the driving test.