By the first day of August, 2007, the PLA ________ for eighty years．

A．founded

B．has founded

C．has been found

D．had been founded

By the first day of August, 2007, the PLA has its ________ birthday．

A．eighty

B．the eightieth

C．eightieth

D．eighties

－Is the girl ________ is interviewing the manager of that company your friend?

－Yes, she is a journalist from CCTV．

A．whom

B．which

C．who

D．whose

Don’t be afraid of asking for information ________ it is needed．

A．when

B．after

C．although

D．unless

It’s important ________ the piano well．

A．of him to play

B．for him to play

C．of him playing

D．for him playing

This kind of food ________ cool, clean and dry according to the instruction．

A．should be carried

B．must be put

C．should be placed

D．must be kept

－Have you mended your shoes, Bob?－Yes, I ________ them twenty minutes ago．

A．have mended

B．mend

C．had mended

D．mended

With the help of the Internet, news can ________ every corner of the world．

A．arrive

B．reach

C．go

D．get

－Do you．Know ________ lady in blue?－Yes．She is a teacher of a university．

A．the

B．a

C．an

D．不填

It is ________ nice of you to say so．

A．truly

B．true

C．really

D．real