英语中 关于 would should could can

问题描述:

英语中 关于 would should could can
老师说疑问句中and变or some变any 但是在用would should could can这几个疑问词提问的时候不变 可是现在讲的兴趣爱好又说要变 如 can you sing or dance?为什么and变or?请教下在哪种情况下用would should could can这几个疑问词提问的时候也要变?哪种情况不变?

would should could can这几个疑问词提问的时候不变,是因为提问者期望得到肯定回答
一般讲来,只要是疑问句或否定句,都是要变的
你就把这一类的题目背下来,应付考试足够了