It is said that the gravity on Mars is only about __________ of the gravity on e

题型：不详难度：来源：

It is said that the gravity on Mars is only about __________ of the gravity on earth．

A．three-eighths

B．third-eighth

C．three-eighth

D．third-eighths

答案

解析

试题分析：句意：据说火星上的重力是地球上重力的八分之三。分数的表达为分子用基数词，分母用序数词，当分子大于一时，分母的序数词用复数形式；故选A。

举一反三

He hadn’t worked hard at his lessons．_______, he failed in the exam．

A．As a result

B．However

C．Otherwise

D．Since then

题型：不详难度：| 查看答案

—_____will you stay here? 　　　 —Until tomorrow afternoon．

A．How long

B．How soon

C．When

D．How often

题型：不详难度：| 查看答案

This dress still looks pretty on you, _______ it is out of style．

A．but

B．though

C．since

D．unless

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It"s reported that Shuanghu Yu Cai Middle school will be built ______ Sep 1^th, 2013.

A．in

B．on

C．at

D．for

题型：不详难度：| 查看答案

Without Mr. Wang’s advice, I would not succeed in finishing the model plane.

A．help

B．suggestions

C．ideas

D．opinions

题型：不详难度：| 查看答案