The parents suggested ________ in the hotel room but their kids were anxious to camp out during the trip．

sleep

to sleep

sleeping

having slept

This is the third book that he has written in the past five years, the first of ________ I really enjoyed．

which

that

those

then

Such a book ________ you showed me is difficult to understand．

that

which

as

like

Is this book ________ you want to borrow from the library?

that ?

which

the one?

/

The old man has two sons, ________ is a soldier．

one of whom

both of them

all of whom

none of them

Please take any seat ________ is free．

which

where

in which

that

The gentleman ________ you told me yesterday proved to be a thief．

who

about whom

whom

with whom

After living in Paris for fifty years he returned to the small town ________ he grew up as a child．

which

when

that

where

Mary was always speaking highly of her role in the play, ________, of course, made the others unhappy．

which

who

this

what

________ is known to all, China will be an advanced and powerful country in 20 or 30 years’ time．

What

That

As

It