看到Mocky 很难受，.Ken关切地问：
A.What’s the matter? B.Don’t worry,Mocky.
Sally is going to go to the library ____ Sunday.
A. inB. atC.on
It’s going to_______ in Shanghai.
A. rainy B. be rainC. rain
Look! The boy ________after a dog .
A. running B. runs C.is running
The birds are sitting ________the trees.
A. in B. to C. on
You can play _____piano but you can’t play ____baseball.
A. a; theB. /;the C. the; /