选出不同类的一项。 ( )(1)A.Canada B.Mexico C.American ( )(2)A.these B.those C.there ( )(3)A.letter B.email C.stamp ( )(4)A.reading B.dancing C.sing
_______tall building it is!
( )—________ we ask you some questions? —Sure, go ahead!
( ) —________ I finish the work today? —No, you ________.
( ) This book ________ Lucy’s. Look! Her name is on the cover.
( ) (7) John ________ come to see us tonight, but he isn’t very sure yet.