I’m afraid I’ll have to _________ the lost book.
一 Have you finished your homework yet? -- No, not yet. I think it'll take me half an hour.
--Do you think students should be allowed to do their homework with music on? -- . If so, they can't concentrate on the study.
Which of the following means “can be recycled"?
-- Hello, this is Jack. Mary I speak to Tom? -- Sorry, he isn't in at the moment. If he back, I'II ask him to call you back.
volunteers are working for 2014 International Horticulture Exposition in Qingdao.