题目内容

They are Mr. Jackson's ______.

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

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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

All the ______ are sharp.

A. knives
B. knife
C. knifes
D. a knife

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