Everything was placed exactly ________ it used to be before she left the laboratory.

A．why B．when

C．where D．though

Just use this room for the time being, and we'll offer you a larger one ________ it becomes available.

A．as soon as B．unless

C．as far as D．until

With hundreds of attractions, Beijing is a city ________ makes a lasting impression on its visitors.

A．which B．where

C．what D．when

Naturally a smile ________ the eyes participate is extremely communicative.

A．to which B．in which

C．at which D．with which

It's said to be a case of murder ________ the children were used by adults.

A．when B．where

C．which D．that

Eleven people got killed in the accident, ________ the identities haven't been available.

A．whose B．of whom

C．to whom D．with whom

After visiting Harbin, most of the foreign friends said they would never forget the time ________ they had spent.

A．that B．what

C．when D．at which

Suddenly I heard a man shouting at a driver, ________ car was blocking the street.

A．which B．whose

C．of whom D．of which

—How do you like the book?

—It's quite different from ________ I read last month.

A．that B．the one what

C．the one D．which

Have you ever dreamed of staging a concert, ________ thousands of people are applauding and appreciating your music?

A．at which B．when

C．for which D．which