人教版五年级英语上册选择专项练习( )1. Who_they? A. is B. are C. am( )2. Her class _so much fun. A. is B. are C. am( )3. They_healthy for me. A. is B. are C. am( )4. The grapes_sour. A. is B. are C. am( )5. I _hungry. A. is B. are C. am( )6.Today _Saturday. A. is B. are C. am ( )7. The apples_ sweet. A. is B. are C. am ( )8.The end tables_big. A. is B. are C. am( )9. The air-conditioner _