--- It’s dangerous to swim here. Look at the sign.--- Oh, I notice it. Thanks for telling me.
--- ________ 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?
(原创) Wang Lin, ______be noisy in class!