—Whose pencil sharpener is this? —It_________ mine .Mine is here.I think it belongs to .
Don’t _____TV too much after school.
--- ________ can you play? --- The drums.
--- Are you good ______ your students? --- Yes, I am.
(原创)Look!He is ______ music in class.
(原创)Can your sisiter clean her room ______ weekdays?