辨音，读音相同写“S”，不同写“D”。(10分)
( )（1）A.much B．cut C．sun
( )（2）A.river B．rice C．bike
( )（3）A.waste B．quite C．make
( )（4）A.ruler B．water C．teacher
( )（5）A.lost B．look C．land
Do you know how________a kite?
A．make B．to make C．making
We should ________ quiet in class.
A．be B．to be C．being
There are many wild animals________in the world.
A．live B．lives C．living
We waste too________ water.
A．any B．many C．much