[单项选择]Since two speakers are now unable to attend，we shall require only 2 Seminar Rooms instead of the 4 booked．
A. Now two seminar rooms are enough．
B. More seminar rooms will be needed．
C. Six seminar rooms have been reserved．

[单项选择]If we leave now, we should miss the traffic.
A. avoid
B. mix
C. direct
D. stop

[单项选择]（）we leave now, we can't avoid traffic
A. If   
B. Unless 
C. Even though
D. No matter

[单项选择]We'll be away for two weeks because we'll have a ______.

[单项选择]

Passage Two
A hundred years ago, the game we now call football did not exist. American football started during a game between two colleges. The teams had got together to play what they called "football", but each team played by different rules. One team played what we now call soccer. The other played what we now call rugby (橄榄球).
Both games had been invented a thousand years before. In the first kind of football game ever played, all the men from one village tried to kick a ball into another village. The men of the second village tried to kick the ball into the first. Hundreds of people joined in, running everywhere, running crops and knocking down fences. In time, people agreed on some rules to keep order, but many roles were left open to change. Different rules developed in different places.
When the two colleges met to play football, each followed its own rules. They mixed the games together and invented a new game. A hundred years lat
A. the rules of soccer
B. the rules of rugby
C. different rules
D. college rules

[单项选择]Now that we have succeeded in isolating this drug, our next problem is to plan its in the laboratory.


A. diagnosis
B. synthesis
C. thesis
D. hypothesis