means是单数还是复数
问题描述：
means是单数还是复数
答
你知道means的用法吗?请看题：By all _______,you must try every _______ to help him.A.mean,mean B.means,means C.means,mean D.mean,means【陷阱】误选C,认为第一空前有 all 修饰,故用 means,而第二空前有 every...