1 . We live day by day,but in the great things,the time of days and weeks_______so small that a day is unimportant.

A．is	B．are
C．has been	D．have been

2 . Happiness and success often come to those_______are good at recognizing their own strengths.

A．whom

B．what

C．which

D．who

3 . _______ the website of the Fire Department in your city, and you will learn a lot about Firefighting.

A．Having searched

B．To search

C．Searching

D．Search

4 . By serving others, a person focuses on someone other than himself or herself, ________ can be very eye-opening and rewarding.

A．who	B．which
C．what	D．that

5 . _____ the Internet is of great help. I don’t think it’s a good idea to spend too much time on it.

A．If

B．While

C．Because

D．As

6 . The growing speed of a plant is influenced by a number of factors, _____ are beyond our control.

A．most of them

B．most of which

C．most of what

D．most of that

7 . The university estimates that living expenses for international students _________ around $8,450 per year, which _________ a burden for some of them.

A．are; is	B．is; are
C．is; is	D．are; are

8 . You must learn to consult your feelings and your reason________you reach any decision. (2013·湖南，23)

A．although	B．before
C．because	D．unless

9 . Before a problem can be solved, it must be obvious ________ the problem itself is.

A．what

B．that

C．which

D．why

10 . Having checked the doors were closed, and        all the lights were off, the boy opened the door to his bedroom.

A．why	B．that
C．when	D．where