This is the best film (that I have ever seen) The book (is important to) me 再问: We're afraid of the teachers --------- strict with students. A.that is B.which are C.who is . D.that are 麻烦了... 再答: D 先行词为人时,可用who,that,whom此处做主语可用who和that,teachers为复数所以从句用复数are,所以选D