A.volume B.noise C.voice D.pitch
A.guide B.control C.keep independence from
A.小學一年級 B.小學二年級 C.小學三年級 D.初中一年級
A.we should stick to them until we complete them B.we may change our goals as we have new ideas and opportunities C.we had better wait for the exciting news of success D.we have made great decision