________ is known to us all, China is a developing country．

A．That

B．This

C．As

D．It

Robert is good at languages, ________ was all know．

A．that

B．as

C．when

D．what

The word “write” has the same pronunciation ________ the word “right”．

A．that

B．as

C．to

D．from

The gardener was called to tell the way ________ the poor dog had died．

A．in that

B．which

C．how

D．in which

Tom was one of the best students who ________ at yesterday’s school meeting．

A．was praising

B．were praising

C．has been praised

D．were praised

I don’t know the reason ________ you were absent from the meeting, but I’m sure that someone will tell me the reason ________ you haven’t．

A．why; that

B．that; why

C．because; which

D．of which; that

She wouldn’t marry ________ was rich but not honest．

A．whom

B．whomever

C．who

D．whoever

All ________ is needed is a supply of oil．

A．the thing

B．that

C．what

D．which

He stayed in the room, the window of ________ opens to the south．

A．which

B．whose

C．that

D．where

Uncle Tom lives in a mountainous village, ________ is two hour’s ride from here．

A．where

B．in which

C．which

D．that