We will climb the mountain tomorrow_it doesn't rain.A. if B. although C. since
--- ________ 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!