As teachers we should concern ourselves with what is said, not what we think______

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问题 As teachers we should concern ourselves with what is said, not what we think______

选项 A、ought to be said.
B、must say.
C、have to be said.
D、need to say.

答案A

解析 由题干可知,we think是插入语,与空格相对的应是what is said,由此排除[B]和[D]。又因为what作主语时,谓语动词应用单数,故答案为[A]。
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