下列各题均有一处错误,请找出并改正

下列各题均有一处错误,请找出并改正
1.---(Who) stamp is (this?)---(Is's) (Wang Hai's)
A B C D
( )_________
2.---(May) I (go) (and) you?---(Certainly).
A B C D
( )_________
3.(These) (are) new (Japan) (stamps).
A B C D
( )_________
4.---(What's) (day) is (today?)---Is's (Monday).
A B C D
( )_________
5.(Don't) (read) (under) the (sun.)
A B C D
( )_________