In a physical change no new substance is formed，__________ in the composition of matter.

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• 1—It's nice.Never before________ such a special drink! —I'm glad you like it.

  A.I have had

  B.I had

  C.have I had

  D.had I

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• 2 So mysteriously ______ missing that many puzzles wait to be solved.

  A.did Flight MH370 go

  B.Flight MH370 went

  C.does Flight MH370 go

  D.had Flight MH370 gone

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• 3______the nurses want a pay increase, they want reduced hours as well.

  A.Not do only

  B.Do not only

  C.Only not do

  D.Not only do

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• 4.Only _____ as an interpreter _____ how important it was to practise speaking English.

  A.when did I work…I realized

  B.when did I work…did I realize

  C.when I work…did I realize

  D.when I worked…did I realize

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• 5She won't go unless________.

  A.invite

  B.invited

  C.will invite

  D.are inviting

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• 6Reading books is very important for developing the students' understanding of the world, ______ ?

  A.is it

  B.are they

  C.isn't it

  D.aren't they

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• 7—Is everyone here? —Not yet. Look, there _______ the rest of our guests!

  A.come

  B.comes

  C.is coming

  D.are coming

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• 8He must be helping the old man to water the flowers, _____?

  A.is he

  B.isn't he

  C.must he

  D.mustn't he

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• 9Don't forget the appointment with the principal at the registry office, _____ you?

  A.don't

  B.will

  C.do

  D.shall

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• 10---How about going for a walk? --- ________ great. Let's get going.

  A.Sound

  B.Sounding

  C.To sound

  D.Sounds

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