题目内容
19、I _________ have written to him because he would come back as he informed us.
A. couldn't B. ought to C. must D. needn't
试题答案
19、D
相关题目
题目内容
19、I _________ have written to him because he would come back as he informed us.
A. couldn't B. ought to C. must D. needn't
试题答案
19、D