六年级（下）Recycle 第 3 课时 当堂达标题班级:__________ 姓名:____________I．单项选择。( ) 1. My father often ____ swimming in the sea. A. go B. goes C. going( ) 2.Mary usually ______ P.E. class in the afternoon. A. has B. have C. having( ) 3. We can play _____ piano in the music roo...
