1.To be honest,let,down
2.be sure to
3.has he?John hasseen an ，________(反义疑问句hasn't heMost of my friends like loud music .they can dance to it.（合并）Most of my friends like loud music ________they can_____that, dance tothey can_____ 只有一空dance为什么可以不加to你说一个空啊不加to 行么还是要别的句型要加to才对。