As teachers we should concern ourselves with what is said,not what we think ( ).A. ought to be said B. must say C. have to be said D. need to say 为什么选A,不选C?是不是应为has to be said?

问题描述:

As teachers we should concern ourselves with what is said,not what we think ( ).
A. ought to be said
B. must say
C. have to be said
D. need to say
为什么选A,不选C?是不是应为has to be said?

a

ought to 表应该
have to表不得不

a是应该说
c是不得不说