( )(2)当你想说“真是个好主意”应说:A. It is OK ! B. That’s a good idea !
( )I am _____ in the sky. A. fly B. flys C. flying
( )I am having _____ ice cream. A.a B. an C./
( )She’s _____ breakfast. A. having B. have C. has
( )It _____ too hot. A.get B. getting C. gets
( )He’s walking _____ the park. A. in B. of C. on