The doctor said that the treatment would continue until the patient reached the point ________ he could walk correctly and safely.

A．where 

B．when

C．which 

D．that

________ was expected, he broke his promise once more, ________ left his friends down.

A．It; which 

B．As; which

C．It; as 

D．Which; which

The Internet is a wonderful discovery, ________ of great significance to people's lives.

A．which I think is 

B．which I think it is

C．as I think 

D．as is I think

Faye's fondest memory is of last year，________ the club gave a tea party for her birthday.

A．that

B．which

C．where

D．when

In the end, it was Becky ________ he turned for a gentle word and a smile.

A．on whom 

B．in whom

C．to whom 

D．for whom

He has got himself into a dangerous situation ________ he is likely to lose control over the plane.

A．where 

B．which

C．that 

D．why

The newspaper is owned by a foreign company, ________ boss is Sir James Bex.

A．when 

B．where

C．which 

D．whose

I'll never forget the days ________ I learnt hard in my senior high school, ________ changed my whole life.

A．that; which 

B．when; which

C．which; when 

D．that; that

In Western culture, 21 was the age ________ young people traditionally received a key to their parents' door, as a symbol of entering adulthood.

A．in which 

B．on which

C．at which 

D．to which

He hoped to revisit the small mountain village ________ he once settled down after he finished middle school.

A．where 

B．that

C．which 

D．when