1 . —Don’t look down upon Bob. He has his own advantages.
—Oh, yes.         others are weak, he is strong.

A．Before	B．When
C．Where	D．Though

2 . In some countries, people eat with chopsticks, while in      , knives and forks.

A．another	B．others
C．both	D．all

3 . The stone bridge __ _ last year is very beautiful.

A．built

B．was built

C．being built

D．to be built

4 . He telephoned the travel agency to_______three air tickets to London.

A．order

B．arrange

C．take

D．book

5 . —How long do you suppose it is     1     he left for Japan?
—No more than half a month.

A．when	B．before
C．after	D．since