1 . It is in the year of 2010__________ a severe drought hit Yunnan province.

A．until

B．that

C．before

D．when

2 . It was the President himself______ opened the door．

A．who

B．when

C．which

D．where

3 . It wasn’t until near the end of the letter ______ she mentioned her own plan.

A．where

B．that

C．why

D．when

4 . You don’t need to make fancy foods to impress guests—it is something simple but good _____ will do.

A．what

B．that

C．which

D．who

5 . It was 80 years before Christopher Columbus crossed the Atlantic 　　　 　 Zheng He had sailed to East Africa.

A．when	B．that
C．after	D．since

6 . It was not until midnight____ they reached the camp site.

A．that

B．when

C．while

D．as

7 . —I’ve read another book this week.
—Well, maybe __ is not how much you read but what you read that is important.

A．this

B．that

C．there

D．it

8 . — _______ you got to know my telephone number?
— Through a friend of yours.

A．How was it

B．How was it that

C．Was it how that

D．How did

9 . Was it because of the heavy snowstorm in Europe ________ the flight had to be put off？

A．which

B．so

C．why

D．that

10 . Mr. Smith didn’t understand _____ made his son so upset that evening.

A．what was it

B．why it was this

C．how that was

D．what it was that