Have you read the book ________ is about the moon?
A．what B．it
C．/ D．which
The first thing ________ my brother is going to do this afternoon is to write a letter.
A．why B．who
C．that D．whose
There will be a flower show in the park ________ we visited last week.
A．who B．when
C．what D．which
We are ________ the coming final-term examination.
A．prepare for B．preparing for
C．prepare to D．preparing to
Mr.Green is looking forward ________ a big house for his family.
A．to buying B．to buy
C．buy D．buying
Tom has problems ________ English.
A．learning B．to learn
C．learn D．learned
