In the experiment the scientist kept a watchful eye________the developments and

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In the experiment the scientist kept a watchful eye________the developments and recorded every detail.

A．in

B．at

C．for

D．on

答案

解析

题意：在试验中科学家密切注视着试验的进展并且记录着每个细节。keep an eye on…是习语，意为“密切注视…”。

举一反三

Most of the universities in China provided scholarships for students ______ financial aid.

A．in favor of

B．in honor of

C．in face of

D．in need of

题型：不详难度：| 查看答案

Scientists have shown that there is a connection ____ cigarette smoking and certain diseases.

A．with

B．between

C．to

D．on

题型：不详难度：| 查看答案

New cars will be taken to other parts of the country _______ railway.

A．along

B．by

C．on

D．with

题型：不详难度：| 查看答案

-----What are you afraid ______?
-----I’m afraid ______ dogs.

A．/ ; /

B．with; with

C．of; of

D．/ ; of

题型：不详难度：| 查看答案

The woman sold the eggs _____ seven dollars and they were sold ____ half price.

A．with; at

B．for; at

C．at; in

D．by; on

题型：不详难度：| 查看答案