两个小组生产同样的零件，第一组的废品率是2%，第二组的产量是第一组的两倍而废品率是3%。若两组生

He has been for five years.

A. in prison

B.in the prison

C.on prison

D.at the prison

--- __________？

--- Two years ago.

A. Where did he go

B. How long has he been in America

C. When did he go to America

--- ________________？

--- Two years ago.

A. Where did he go

B. When did he go to America

C. How long has he been in America

ike his policies. The man, 22, appeared in federal court on Wednesday and was charged with knowingly and willingly making threats to kill the president. He faces up to five years in prison and $ 250,0 00 fines. The man was being held without bond pending a Monday hearing. Court documents claim he called the Colorado Bureau of Investigation six times from his girl- friend's house on Tuesday, saying, "I am going to kill the president." When asked why, he allegedly said, "i don't like his policies."

What punishment will the charged face？

A．Five years in prison and a fine of $250,000.

B．Six years in prison and a fine of $ 350,000.

C．Fatal punishment.

D．Seven years in prison and a fine of $ 260,000.

He has been in the countryside for many years, so he has got ______ to the life there. (useful)

he found.

A．at

B．of

C．on

D．to

d.

A．at

B．in

C．on

D．to

He has been writing for 3 years, but being a writer is not his ________.

A.chance

B.choice

C.change

D.character

It has been years __________ I returned home.

[A]after

[B]that

[C]since

[D]when

He has been teaching for 2 years, but being a teacher is not his ______.

A．chance

B．character

C．attitude

D．choice