It's ten years since the scientist ____ on his life's work of discovering the valuable chemical.

试卷相关题目

• 1To begin with, we learn how to______ our body when skating.

  A.balance

  B.keep

  C.hold

  D.get

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• 2I've _______ the habit of calling in on my grandparents on my way home from school.

  A.come into.

  B.gone into.

  C.got into.

  D.run into.

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• 3Too much pressure from study leads to sleeplessness, which _______ increases the risk of forgetfulness. 

  A.in turn

  B.in return

  C.by chance

  D.by choice

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• 4Many citizens urged their government to take measures to cut _______ their carbon emission to reduce greenhouse effects.

  A.off

  B.up

  C.out

  D.down

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• 5We ______ the national flag when the sun ____ in the east every morning.

  A.raise; raises

  B.rise; rises

  C.raise; rises

  D.rise; raises

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• 6Peru is, ______, a very beautiful country、It is so attractive that tourists from all over the world come to visit it.

  A.without question

  B.out of the question

  C.in question

  D.under question

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• 7Though he didn't ________an important position, he got along very well with almost everybody and was trusted by most of his leaders.

  A.attend

  B.make

  C.hold

  D.stand

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• 8You are no longer a child. It's time for you to _______ differences with your parents.

  A.upset

  B.pack

  C.settle

  D.solve

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• 9All the people were shocked by what the little girl ________ when she was cheated and sold to the mountain village.

  A.went over

  B.went through

  C.got along with

  D.got away

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• 10She was so _____________ in her job that she didn't hear anybody knocking at the door.

  A.attracted

  B.absorbed

  C.drawn

  D.concentrated

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