_____from the moon ,our earth with water ____70% of its surface, appears as a “blue ball”

试卷相关题目

• 1In many ways, riding on a bike is similar to _______.

  A.driving a car

  B.when you drive a car

  C.drive a car

  D.when driving a car

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• 2This book _____ the life of the students is popular with the teenagers．

  A.which based on

  B.based on

  C.basing on

  D.being based on

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• 3---- Excuse me sir, where is Room 301? ---- Just a minute. I'll have Bob ______ you to your room.

  A.show

  B.shows

  C.to show

  D.showing

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• 4They don't allow ______ here. That is to say, we are not allowed _____ here.

  A.to smoke; to smoke

  B.smoking; smoking

  C.to smoke; smoking

  D.smoking; to smoke

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• 5I was greatly ______ at how he worked out the ______ problem in a creative way.

  A.amazed; confused

  B.amazing; confusing

  C.amazed; confusing

  D.amazing; confused

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• 6A proper approach to ________ your learning efficiency is of great significance to every student.

  A.improving

  B.improve

  C.be improving

  D.having improved

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• 7I regret _____ more time with my grandma before she passed away.

  A.not spending

  B.not to spend

  C.not spend

  D.not have spent

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• 8_______ a reply, I wrote to him again.

  A.Not receiving

  B.Not having received

  C.Having not received

  D.Not having heard from

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• 9John was seen ________ in by the back door, but nobody saw him _______.

  A.to come…to leave

  B.come… leave

  C.to come… leave

  D.come…leaving

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• 10Personal relationships ______ over years may be lost when we move houses.

  A.building up

  B.built up

  C.having built up

  D.to be built up

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