Progress so far has been very good, ________, we are sure that the project will be completed on time．

A．otherwise

B．therefore

C．besides

D．however

All of us don't believe the fact ________ our best student failed in the competition．

A．that

B．which

C．when

D．why

The foreigners are ________ by the ________ progress that the Chinese have made．

A．amazing…amazing

B．amazed…amazed

C．amazed…amazing

D．amazing…amazed

Not knowing where to go or what to do, I ________ across the streets aimlessly．

A．disappeared

B．showed

C．wandered

D．wondered

As ________ boy, he should learn how to behave like ________ real man sooner or later．

A．a; the

B．a; a

C．/; the

D．a;/

Your story is perfect; I've never heard ________ before．

A．the better one

B．the best one

C．a better one

D．a good one

We thought it strange ________ Xiao Zhang did not take part in the sports meet of our school．

A．why

B．whether

C．when

D．that

________ the challenges, I become stronger than I used to be．

A．Rather than

B．Thanks to

C．Instead of

D．As a result

A survey of the opinions of experts ________ that three hours of outdoor exercise a week ________ good for one's health．

A．show; are

B．shows; is

C．show; is

D．shows; are

Only when you showed the pass to the guard ________ to come out our school．

A．you allowed

B．allowed you

C．you were allowed

D．were you allowed