题目内容

13. ________________were cleaned by the children.

A. Windows of the room
B. The windows of the room
C. The room's window
D. The windows in room

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14. Nowadays______________of business letters are written in English.

A. two third
B. two thirds
C. two three
D. second three

15. Bill said they were going to have a ____________holiday.

A. two-week
B. two-weeks'
C. two-week's
D. two-weeks

16. Meimei is going to be an elder sister. Her parents are planning to have their__________child

A. one
B. two
C. first
D. second

17. I got a good present on my _________________birthday.

A. nine
B. ninth
C. the nine
D. the ninth