Mary isn't _____ out at night because it's not safe in the street after dark.

[　　]

A．permitted　　　B．let

C．allowed　　　　D．promised

As is reported in the newspapers, more and more middle school students are studying abroad _____.

[　　]

A．at their expense　　　B．in their expenses

C．for their expenses　　D．with their expense

The British are not so familiar with different cultures and other ways of doing things, _____ is often the case in other countries.

[　　]

A．that　　　B．so

C．what　　　D．as

He quickly wrote down the address in his notebook, _____ the page out and handed it to me.

[　　]

A．pulled　　　B．pushed

C．tore　　　　D．turned

One moment he said he was interested in fine art _____ now he is sleeping in class.

[　　]

A．so　　　　B．as

C．and　　　 D．also

The twins are so much alike that I can hardly _____.

[　　]

A．tell apart them

B．tell them apart

C．tell one from another

D．tell the difference among them

To save the time, the chairman of the medical conference asked every speaker to be brief and _____.

[　　]

A．to the point　　B．on the point

C．of the point　　D．to a point

Everything has been ready. It only _____ for the leaders of the two countries to sign the paper.

[　　]

A．seems　　　B．appears

C．remains　　D．happens

Everyone was on time for the meeting--_____ Chris, who's usually ten minutes late for everything.

[　　]

A．but　　　B．only

C．even　　 D．yet

It was unexpected that I _____ my childhood friend in such a far-awaY small town at all.

[　　]

A．knocked into　　　B．turned up

C．took pride in　　 D．keep up with