题目内容

Are your friends ______?

A. tour
B. a tourist
C. tourist
D. tourists

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They are Mr. Jackson's ______.

A. employees
B. employee
C. a employee
D. an employee

The _____ are keyboard operators.

A. a woman
B. womans
C. woman
D. women

These ________ are hot.

A. postmans
B. a postman
C. postmen
D. postman

Which _____ are big?

A. a box
B. box
C. boxs
D. boxes

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