Most birds find it safe to sleep in the trees,but_______they have eggs or young chicks,they don't use a nest.

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• 1October 15th,2008 is the first Global Hand-washing Day, _______ goal is to create a  culture of hand-washing with soap.

  A.of which

  B.whose

  C.on which

  D.when

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• 2 Ahead of me I saw a woman ________ I thought was my aunt.

  A.who

  B.whom

  C.of whom

  D.whose

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• 3______ is know to us all, China has its own English language newspaper.

  A.it

  B.which

  C.that

  D.as

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• 4—Is there any possibility _________ you could pick me up at the airport ? —No problem.

  A.when

  B.that

  C.whether

  D.what

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• 5Many of them turned a deaf ear to his advice, __________ they knew it to be valuable.

  A.as if

  B.now that

  C.even though

  D.so that

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• 6It's more than half a century _________ my grandfather joined the Party and became a servant to the people.

  A.when

  B.that

  C.since

  D.while

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• 7Occasions are quite rare _______ I have the time to spend a day with my kids.

  A.who

  B.which

  C.why

  D.when

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• 8The book was written in 1946, ______ the education system has witnessed great charges.

  A.when

  B.during which

  C.since then

  D.since when

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• 9As his best friend. I can make accurate guesses about______he will do or think.

  A.what

  B.which

  C.whom

  D.that

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• 10I think the doctor is able to cure of______he got.

  A.all

  B.what

  C.whatever

  D.anything

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