________ rapid spread of railways and the increase in ocean transport, long-distance travelling became more common.

[　　]

________ an increasing international exchange of educational films.

[　　]

I believe that a color TV made in foreign countries is expensive to buy and expensive ______ . So we can't decide ______ to choose: a color TV made in China or made in other countries.

[　　]

A．to repair…how

B． to repair…which

C．in repair…which

D．to repair…what

Today's libraries differ greatly from ________.

[　　]

Although he is considered a great writer, ______.

[　　]

A． his works are not widely read

B．but his works are not widely read

C．however his works are not widely read

D．still his works are not widely read

______ many times, but he still couldn't understand it.

[　　]

A． He had been told

B． Though he had been told

C．He had told

D． Because he had been told

The color of the skirt is too dark for me. I'd like to ______ it ______ a brighter one.

[　　]

A．change…for

B．change…into

C．turn…to

D．look…for

The scientist and his achievements (成就) ______you told me about are admired by us all.

[　　]

________ is Mr Johnson like? He is a very nice person, and is ________ of the two engineers.

[　　]

______ several terrible accidents around his corner recently.

[　　]

A．It has been

B． There have been

C．There have had

D．There has been