As is known to us all, _____ tiger is in _____ danger of becoming extinct.

A．the, a B．the, 不填

C．a, 不填 D．不填, the

I often have conversations with John over ______ telephone, while keep in touch with Tom by ______ letter.

A．不填；the B．不填；a

C．the；不填 D．the; a

"Charley Oakley, ______ NBA All-star, hasn't missed ______ game in the past three years." "I can hardly believe it."

A．an; the B．a; the

C．the; a D．an; a

The cakes are delicious. I'd like to have _______ third one as _______ second one I ate was too small.

A．the, the B．a, the

C．the, a D．a, a

—Who’s that girl?

—You mean ______ one with long blond hair? That's Jack’s daughter.

A．a B．an C．the D．不填

________old man in ________ brown coat over there is Mr. Jackson．

A．An, a B．An，the

C．The，a D．The，the

They chose Tom to be ___captain of the team because they knew he was __ smart leader.

A．a; the B．the; the

C．the; a D．a; a

Life is like ________ ocean; Only ________strong-willed can reach the other shore.

A．an; the B．the; a

C．the ;/ D．/ ; a

This shop will be closed for repairs ____ further notice.

A．with B．until C．for D．at

Nick, it’s good for you to read some books ______China before you start your trip there.

A．in B．for C．of D．on