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保安考试

2016年英语四级暑期专题练习题(31)

1、 The flu is believed ________ by viruses that like to reproduce in the cells inside the human nose and throat.

  • A. cause
  • B. being caused
  • C. to be caused
  • D. to have caused

2、 The flowers ________ sweet in the botanic garden attract the visitors to the beauty of nature.

  • A. to smell
  • B. smelling
  • C. smelt
  • D. to be smelt

3、 The disc, digitally ________ in the studio, sounded fantastic at the party that night.

  • A. recorded
  • B. recording
  • C. to be recorded
  • D. having recorded

4、 Having been attacked by terrorists, ________ .

  • A. doctors came to their rescue
  • B. the tall building collapsed
  • C. an emergency measure was taken
  • D. warnings were given to tourists

5、 Robert is said ________ abroad, but I don’t know what country he studied in.

  • A. to have studied
  • B. to study
  • C. to be studying
  • D. to have been studying

6、 The managers discussed the plan that they would like to see ________ the next year.

  • A. carried out
  • B. carrying out
  • C. carry out
  • D. to carry out

7、 I’ve worked with child before, so I know what ________ in my new job.

  • A. expected
  • B. to expect
  • C. to be expecting
  • D. expect

8、 ________ such heavy pollution already, it may now be too late to clean up the river.

  • A. Having suffered
  • B. Suffering
  • C. To suffer
  • D. Suffered

9、 Having a trip abroad is certainly good for the old couple, but it remains ________ whether they will enjoy it.

  • A. to see
  • B. to be seen
  • C. seeing
  • D. seen

10、 The research is so designed that once ________ nothing can be done to change it.

  • A. begins
  • B. having begun
  • C. beginning
  • D. begun