While flying，a bat（蝙蝠）makes a sound which hits things and comes back to its ears．In this way it's able to know _____ the things are and avoid bumping into them．

试卷相关题目

• 1If you are weak _____ a subject，_____  and asking a teacher for advice can help．

  A.at；working hard

  B.in；work hard

  C.at；work hard

  D.in；working hard

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• 2--Do you think it will do US good or harm、--_____．Let's beg for God's help．

  A.It's hard to say

  B.I'm sure

  C.It's impossible

  D.You are right

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• 3It's an important decision for you，so _____ your time and think it over．

  A.take

  B.waste

  C.kill

  D.save

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• 4--Will you please _____ it to me on Friday、--What about Saturday、 My computer doesn't work well these days．

  A.post

  B.give

  C.email

  D.bring

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• 5--Do you like to listen to “Mozart（莫扎特）”、--Yes．Listening to _____ is my favorite．

  A.songs

  B.music

  C.stories

  D.news

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• 6If we continue to be _____ the problem，things are sure to go from bad to worse．

  A.blind to

  B.interested in

  C.honest about

  D.satisfied with

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• 7Have you heard of the story of Holi、 It _____ like this：there was a bad king who…

  A.tells

  B.comes

  C.goes

  D.says

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• 8A study shows that a tropical fish in America Can survive（存活）_____water for up to 66 hours．

  A.beyond

  B.in

  C.out of

  D.from

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• 9He didn't tell his parents he was going home because he wanted to give them a _____．

  A.kiss

  B.surprise

  C.chance

  D.gift

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• 10--Excuse me．How can I get to the railway station、--Turn left and then follow your nose．--You _____ miss it!

  A.mustn't

  B.can't

  C.shouldn't

  D.needn't

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