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假如你是李华，请就本校食堂服务(canteen service)的状况给校长写一封信。内容包括：
| 优点 |
不足 |
建议 |
| 食堂干净 |
价格偏高 |
尽快解决问题 |
| 饭菜可口 |
种类偏少 |
|
| 服务态度好 |
等候时间较长 |
词数：100左右；开头和结尾已为你写好。
Dear Mr. Principal.
I am a senior student of our school. I'd like to say something about the canteen service in our school. _____________________________________________________________________
______________________________________________________________________________________________________________________________________________________________
______________________________________________________________________________________________________________________________________________________________
______________________________________________________________________________________________________________________________________________________________
Sincerely yours,
Li Hua
―What’s the matter? You look worried and restless.
―Oh, nothing really serious. As a matter of fact, I ______ of my graduation thesis. I have to hand it in soon.
| A．am just thinking | B．just thought |
| C．have just thought | D．was just thinking |
One of them told me, “This is the first time I ________ to the capital to attend the flag-raising ceremony.”
| A．came | B．come | C．have come | D．had come |
The news came as no surprise to me. I _______ for some time that the factory was going to shut down.
| A．had known | B．knew | C．have known | D．know |
My mind wasn’t on what he was saying so I’m afraid I _______ half of it.
| A．was missing | B．had missed | C．will miss | D．missed |
With more forests being destroyed, huge quantities of good earth _______ each year.
| A．is washing away | B．is being washed away |
| C．are washing away | D．are being washed away |