________ , those college students come to see the old man who has no son and daughter.

[　　]

They find he grows weaker ________.

A．Year after year , year by year

B．Year after year , year after year

C．Year by year , year by year

D．Year by year , year after year

We all consider him ________ a warm-hearted teacher.

[　　]

The policeman turned his car ________ the left and found a dead boy. Then he ________ and examined it carefully .

[　　]

I heard a knock on the door. So I ran to the door quickly . My wife did so . I knocked ________ her and I almost knocked ________ .

[　　]

A．at , her out

B．down , on her

C．against , over her

D．against , her down

Dictionaries are made ________ paper while this kind of paper is usually made ________ bamboo.

[　　]

He spent a lot of time ________ .

[　　]

A．in English study

B．on English study

C．with English study

D．to study English

[　　]

A． made up　　　B． made of　　　C． made from　　　D． made up of

The project lasted 5 years and ________ I billion yuan.

[　　]

A． spent　　　B． paid　　　C． cost　　　D． worth

Science and technology ________ a very important part in the development． of agriculture in our country.

[　　]

A． take　　　B． play　　　C． do　　　D． make

The singing went on ________ the evening and into the late of the night.

[　　]

A．all through

B．all over

C．through all

D．over all