——What’s _____the tree? ——Oh, He’s my brother, Mike. A.at B.on C.in
( )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