当你想问“你在做什么?”的时候,你应该说:__________________A. Who is she ?B. What is he doing?C. What are you doing ?
( ) That is ______ apple . A. a B. an C. none
( ) I can ____ it . A. do B. does C. doing
( ) It is ____ watermelon . A. an B. a C. none
( ) I’ll buy one ____ you . A. to B. of C. for
( ) Can ____ have one ? A. me B. my C. I