A. key B. keys C. a key D. an key

【题目】People usually think tigers are scary.
A.kind
B.kinds of
C.a kind of
D.kind of

A. You are right B. That’s right

C. You are welcome D. Thank you

A.nineth B.tenth C.nine D. ninth

【题目】We can't be late _________ class.
A.to
B.for
C.in
D.at

—He _______ to the post office.

A. goesB. will goC. has beenD. has gone

A.for;for B.for;of C.of;of D.for;to

【题目】Nobody taught me English. I learned it by _______ .
A.myself
B.my
C.mine

A. Were; visitingB. Will; visitC. Have; visitedD. Are; visiting