有个英语的问题we have four classes in the morning class为什么要加es the

We have four (class)in the morning. we have four class in the morning. we have four classes in the morning改成同义句 we have four classes in the morning.改一般疑问句 We have four classes in the morning.four划线变成how many classes We have four classes in the morning .改为否定句.到底是在have前加don‘t还是 They have four (class) in the morning. we have four classes the morning and two in the afternoon什么意 WE have four classes in every morning We have four classes in the morning,完成反意疑问句 It is in the morning when we have four classes.是不是强调句 they have four classes in the morning神马意思