As we all know, ____ tigers are in____ danger of dying out.

A．the；不填            B．不填；不填         C．the；the           D．不填：the

Mr. Smith is trying to hire a new secretary, ____ who can both type and drive.

A．one         B．the one               C．that            D．he

-- I must apologize for what my son did yesterday.

--____ Children are children.

A．I'd rather you didn't!                  B．Forget it!

C．So what?                           D．What for?

All the students were excited____ that English would become an optional course.

A．hearing        B．to have heard            C．heard        D．to hear

The new hospital was____ opened this morning, attracting the attention of all local media.

A．officially        B．automatically         C．directly       D．potentially

Much to my anger, my secretary has left me and____ his own company.

A．picked up          B．taken up          C．set up         D．put up

All these activities can serve as a platform____ you might find the one you love.

A．which          B．that         C．where         D．when

____ of the three students can repair your computer. They are all experts.

A．Whatever           B．What         C．Whichever            D．Which

Your time is running out. Change your mind ____ it is too late!

A．since          B．when           C．until          D．before

-- Michael has changed beyond recognition.

-- ____! How did he manage to lose so much weight?

A．So has he                                      B．Neither has he

C．So he has                                         D．Neither he has