He got well-prepared for the job interview, for he couldn't risk ________ the good chance．

to lose．

losing

to be lost．

being lost

Is this the factory ________ he worked ten years ago?

that

which

where

the one

－Are you a football player?

－________．

Yes, I used to

No, but I am．

No, but I used to be．

Yes, but I used to be．

We drove to the nearest railway station ________ is three kilometers away．

不填

what

that

it

The building which ________ now will be our science laboratory．

is being built

will be built

is built

has been built

Everyone except David and Sam ________ there when the meeting began．

is

was

are

were

Do you know if he ________ back next week?If he ________ back, please let me know．

comes, will come

will come, comes

comes, comes

will come, will come

Sam isn't taller than Ben．He's ________ of the two．

short

shorter

the shorter

the shortest

Our house is big, but ________ house is bigger than ________．

their, ours

their, our

theirs, ours

theirs, our

The artist ________ works are very famous in the world is a friend of my uncle's ________ works as a teacher．

who, whose

whose, who

whose, whose

who, who