选出不同类的一项。
( )（1）A.Canada B.MexicoC.American
( )（2）A.these B.thoseC.there
( )（3）A.letterB.email C.stamp
( )（4）A.reading B.dancing C.sing
( )There were ______ books in the library.
A. a lot of B. a C. lot of
( )Yesterday I a big surprise.
A. have B. has C. Had
( )There were lots of books America..
A. to B. about C. around
( )A: where did you last Sunday?
B: I to the park.
A. go, went B. went, go C. go, go