第21题: [单项选择]______ with the truth in small matters cannot be trusted with important matters. A. No matter who is careless B. Whoever is careless C. He is careless D. As is careless 参考答案:B 答案解析:句意:任何在小事上粗心大意的人都不会被委以重任。谓语cannot be trusted with前面缺少主语,No matter who只能引导让步状语从句,whoever不仅可引导让步状语从句,也可