当不知道笼子里的是什么动物时，你可以问：________
A．What's this? B．What time is it?
判断下列单词画线部分有几种读音。(20分)
A．一种读音 B．两种读音 C．三种读音
( )（1）A.west B．nest C．rest
( )（2）A.ear B．pear C．dear
( )（3）A.back B．luck C．clock
( )（4）A.for B．doctor C．visitor
( )（5）A.your B．colour C．course
Tell people________ wild animals.
A．not hunt B．not to hunt C．to not hunt
We shouldn't ________ water.
A．save B．saved C．waste
We should________ good______ animals.
A．be；to B．are；to C．be；for
We shouldn't wear fur________ leather clothes.
A．but B．and C．or