The murderer was brought in, with his hands ________ behind his back.

[　　]

Unless ________ to speak, you should remain silent at the conference.

[　　]

The purpose of new technologies is to make life easier, ________ it more difficult.

[　　]

The computer center, ________ last year, is very popular among the students in this school.

[　　]

He felt rather ________ that she should drive the car at such a ________ speed.

[　　]

________ the time they stopped working together, they ________ more albums than ________ band in history.

[　　]

A．By; had sold; any other

B．At; sold; any

C．In; have sold; all

D．For; had sold; all the other

In the 20th century, great changes ________ in our country, ________ is developing very fast.

[　　]

A．took place; which

B．have taken place; where

C．have happened; which

D．took place; that

Everyone ________ quietly when suddenly a stranger ________ in.

[　　]

A．was reading; rushed

B．read; rushed

C．was reading; was rushing

D．read; was rushing

________ we call the First-Aid Center, the doctors ________ by and by.

[　　]

A．No sooner; would come

B．Shortly; are coming

C．Soon after; would come

D．Immediately; will come

________ nothing can be done.

[　　]

A．Till he will return

B．Until he is going to return

C．Until he returns

D．Till he is coming