A
1 All right.
2 No,it isn't.
3 OK.
4 Sure.
5 Helen is my friend.
6 I can see five hamburgers.

B
1 {:soso_e100:}
2 {:soso_e100:}
3 {:soso_e115:}
4 {:soso_e115:}  

C
1×√
2×√
3×√
4√×

D
a tap
a clock
a basket
a chair

E
连成一只收音机

A
1 All right.
2 No,it isn't.
3 OK.
4 Sure.
5 Helen is my friend.
6 I can see five hamburgers.

B
1 {:soso_e100:}
2 {:soso_e100:}
3 {:soso_e115:}
4 {:soso_e115:}  

C
1×√
2×√
3×√
4√×

D
a tap
a clock
a basket
a chair

E
连成一只收音机