New energy cars have been ______ to cut down air pollution．（ ）
| A． |
discovered |
B． |
found |
C． |
invented |
D． |
refused |
Mike， you skated very well． Who taught you？
Nobody． I taught ．（ ）
A．IB．meC．myselfD．mine
Parents should let children home and find more about the world． After all，birds should fly in the sky．（ ）
A．leaveB．to leaveC．leavesD．leaving
special the classes are! They have learned a lot about drawing．（ ）
A．WhatB．What aC．How aD．How
I don't have juice． Would you like to get for me？（ ）
A．some； someB．any； someC．some； anyD．any； any
How do you often communicate with each other？
We often send e﹣mail or write letter．（ ）
A．a；aB．a； anC．an；aD．an； an