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I hear our teacher will be back           three weeks' time.

 A. at                  B. in                  C. for                D. after

I hear our teacher will be back           three weeks' time.

 A. at                  B. in                  C. for                D. after

根據對話內容和所給的首字母，寫出對話中所缺的單詞，使對話完整，合乎情景。將完整的單詞寫在下面。

A：Hi，Sandy．What's the d  1   today，do you know?

B：Let me see，Peter．It's March 21st．Oh，it's World Sleep Day!

A：Yes．It is set to r  2   L people of the importance of sleep，I think．

B：That's right．Do you think you can have enough sleep?

A．No，so I always feel s  3   during the day．

B：I hear our government will make a project called Project Sunshine Sports for Students．Primary school students should have 10 hours' sleep e  4   day and middle school students should have 9 hours' sleep．All the students should get an hour's spots a day．

A：I cannot sleep so much．I can have o  5   seven hours' sleep a day．We have to get high marks，so sometimes we pay n  6   attention to our health!

B：Sleep is really important．For example，last Sunday I h  7  a good sleep，so I remembered more English words．

A：Me too．H  8   can l study well if don’t get enough sleep? We need to keep fit．

B：Yes，I a  9   with you．We students are the future of our c  10   China!