— Why does the lake smell terrible? — Because large quantities of water ________.

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• 1One-third of the area ________ covered with trees. About seventy percent of the trees _______ been planted recently.

  A.is; has

  B.is; have

  C.are; have

  D.are; has

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• 2Planning so far ahead _____ no sense — so many things will have changed by next year.

  A.made

  B.is making

  C.makes

  D.has made

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• 3The father as well as his three children _______ skating on the frozen river every Sunday afternoon in winter.

  A.is going

  B.go

  C.goes

  D.are going

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• 4Nobody in our class but Tom and I _______ that our monitor is going abroad for further education.

  A.know

  B.am to know

  C.have known

  D.knows

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• 5Either you or one of your students _______ to attend the meeting that is due tomorrow.

  A.are

  B.is

  C.have

  D.be

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• 6The ________ of the students in our class ________ girls.

  A.majority, are

  B.most, are

  C.majorities, are

  D.majority, is

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• 7Every student as well as all the teachers ________ required to be at the bus station at 6:30 tomorrow.

  A.are

  B.is

  C.were

  D.was

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• 8The number of people invited ________ fifty, but a number of them _______ absent for different reason.

  A.were; was

  B.was; was

  C.were; were

  D.was; were

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• 9---- Have you heard that Tom, as well as his parents, _____ moved to Beijing? ---- Really? No _____ I haven't seen him for a long time.

  A.have; doubt

  B.has; wonder

  C.have; wonder

  D.has; choice

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• 10The number of people invited_______ fifty, but a number of them_______ absent for different reasons.

  A.were, was

  B.was, were

  C.was, was

  D.were, were

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