成人英语三级

71. The manager has his employees _____ a business report every week.

A. to write B. written

C. writing D. write

72. We shall ask for samples _______ and then we can make our decisions.

A. to be sent B. being sent

C. to sent D. to have been sent

73. _______ under a microscope, a fresh snowflake has a delicate six-pointed shape.

A. Seeing B. Seen

C. To see D. To be seen

74. We look forward to ______ to the opening ceremony.

A. invite B. be invited

C. having been invited D. being invited

75. Excuse me, but it is time to have your temperature _______.

A. taking B. taken

C. took D. take

答案：71-75 DABDB

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