They think maths _____ useful subject. [ ]A. is a B. are C. is an

题型：期末题难度：来源：

They think maths _____ useful subject. [ ]
A. is a
B. are
C. is an

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举一反三

—It"s going to rain. We can"t go to the park.
— _______ pity it is! [ ]
A. What
B. What a
C. How
D. What an

题型：月考题难度：| 查看答案

Please cut up ______ onion and ______ potato for me.

[ ]

A.an; a
B.a; an
C.a; a
D.an; an

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If you don"t know how to spell a new word, you"d better ______.

[ ]

A．look up a dictionary
B．look up an dictionary
C．look it up in an dictionary
D．look it up in a dictionary

题型：山东省期中题难度：| 查看答案

I think reading more is useful way to learn a language. [ ]
A. an
B.
C. a
D. very

题型：0113 期中题难度：| 查看答案

There is "s" and "u" in the letter "sun". [ ]
A. a, an
B. an, a
C. an, an
D. a, a

题型：浙江省模拟题难度：| 查看答案