I have four . A．tennis racket B．tennis r_爱下问搜题

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问题选择题

I have four .

A．tennis racket

B．tennis rackets

C．rackets tennis

D．racket tennis

答案

答案：B

本句的含义为我有4个网球拍，tennis racket是可数名词，其复数形式是tennis rackets，故本题选B。

选择题

—_____are you, Tony?

—Here, in the reading room. [ ]

A.Where

B.How

C.What

D.Which

单项选择题

厚壁空洞的洞壁厚度超过（）

A.3mm

B.5mm

C.7mm

D.9mm

E.10mm