.your classes begin at 7:33?

.your classes begin at 7:33? what time do your classes begin怎么回答 classes begin可不可以写成 begin the classes our classes begin __at eight__ every day.(划提） ____ ____ your classes begin every day? Classes begin at eight. classes begin at enght.为什么classes What time do your classes begin?这句话的classe为什么用复数? ———your classes begin at 7:30?A Are B Does C Do classes begin begin要不要加s? Classes begin ______seven fifty -five. Our classes begin at 8:00a.m..（对划线部分提问）划 at 8:00a.m()()()your classes()? classes begin at （eight）划线提问 classes begin at （eight）划线提问 What time do classes begin?答句 是Class begin.还是Class begins.还是Classes begin.为什么? class begin还是classes begin?到底应该用哪个呢? When are your classes? swimm classes begin soon!原文：Summer is here,which means it is time to sign your kids up for swim classes again at theCommunity Pool.Classes begin on Monday,May 1,and will continue throughout the summer.Fifteen swim classes are being offered.Each