-What are you mailing, Tom? - A textbook a new method of teaching physics. I want my friends to take a look at it.A．is based onB．based onC．basing uponD．which based upon 题目和参考答案——青夏教育精英家教网—

题目内容

—What are you mailing, Tom?
— A textbook a new method of teaching physics. I want my friends to take a look at it.

A．is based on

B．based on

C．basing upon

D．which based upon

试题分析：句意：上文，你在邮寄什么？下文，一本以新的物理教学方法为基础的教科书，我想让我的朋友看一下。动词短语base on与其逻辑主语A textbook是被动关系，故用过去分词作定语，选B。

练习册系列答案

The missing boys were last seen _______ near the river.

A．to play	B．to be playing
C．play	D．Playing

In Singapore, people who litter or dirty the street are most likely ___________.

Tom’s mother angrily told him ________ games on the Internet.

It rained heavily in the south, _____ serious flooding in several provinces.

Outside the exit, many fans waited for the great pop singer, _______to take a picture with him.

________ at the foot of the mountain is an old church _______ back to the 18^th century when it was occupied by the French.

Peter sat on the train seat, with his eyes ____ on the fields outside the window.

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