1 . The little girl ______ in red seemed really ______ with her performance.

A．dressing; pleased	B．dressed; pleasing
C．dressed; pleased	D．dressing; pleasing

2 . The reason ______ he failed the driving test was ______ he lacked practice.

A．that; that

B．that; because

C．why; that

D．why; because

3 . The people ______ these factories are deeply ______ about the environment.

A．operating; concerned	B．operating; concerning
C．operate; concerned	D．operate; concerning

4 . China has a population of more than 1.4 billion, ______ it the largest country in the world by population.

A．makes

B．making

C．to make

D．make

6 . With the development of technology, a computer can perform many tasks at once.

A．表演

B．执行

C．表现

D．起……作用

8 . The doctor share his phone number with the patients in case they need medical ________.

A．confirmation

B．assistance

C．contribution

D．shortage

9 . Some pre-school children go to a day-care center, _________ they learn simple games and songs.

A．which

B．that

C．where

D．while

10 . The building __________ now will be our library.

A．built

B．being built

C．building

D．build