填空Yesterday I ____ _____ _____ (遭遇) a sandstorm.
Deserts are created because people______ ______(砍倒) trees and dig up grass.
He_____ ____ ____(放火烧)the houses and hundreds of houses caught fire.
_____ _______(浏览) magazines to find pictures that you can stick on your poster.
Trees ______ _____(吸收) carbon dioxide and give out oxygen.
The report shows that we are making some progress but that we need to ________ ________ ___________(做出更大的努力) .
His father died, when he was young, and he was______ ______(抚养) by his mother.
_____ ________(平均) there are twenty boys present every day .
I _______ ____(以…结束;最终) spending the night at the airport yesterday.
That will cost you 1,000 dollars _____ ______(总共).
—Hey, what just happened to my computer? It suddenly froze and then came back on again!
—Oh, it seems that the computer has been a______ by the “Blaster”virus!The 911 rescue team found the missing boy extremely f______， the wolves howling in the woods.
—Do you really believe there is human race in outer space?
—So far there is no proof that people from other planets do e______.We couldn't cut the string because the edge of the knife was not s______ enough.
Even though he has lived in China for many years, Mark still can not a______himself to the Chinese customs.
The teacher came into the office, f________ by several students.
Bob isn't in. Can you leave a m________.
We want to know the l________ news.
There are so many beautiful clothes. I don't know which one to________(选择)．
You may get a good________(景色)on the hill.
单词拼写May I introduce one of my________(同事)in the party?
Some fish are very________(多产)；they lay thousands of eggs.
I hate shopping during the Christmas ________(热潮)when the shops are crowded.
Our school is________(环绕)with a small river.
The ship's sailing________(向下游)．
We must make careful plans when we________(开发)the country's mineral resources.
He has made an________(巨大的)improvement.
________(当然), as a beginner I'm not a very good driver yet.
They________(用筏子运送)the coal down the river.
________(生物化学)is very popular in science today.
He is not________(身体上的)ill but mentally(思想上的)ill.
________(产量)of computers has increased double in the last few weeks.
We prefer________(质量)to quantity.
The colleges and universities were only for men, and women were not________(允许)to attend.
Shelly had prepared carefully for her________(生物)examination so that she could be sure of passing it on her first attempt.
After examining, the plastic surgeon________(诊断)my illness as a rare bone disease.
The students of class two are carrying out an________(实验)in physics.
It's ten years since the scientist set out on his life's work of________(发现)the valuable chemical.
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