Who do you think he would _____ a letter of congratulation to our monitor?

问题描述:

Who do you think he would _____ a letter of congratulation to our monitor?
A.have written B.have to write C.have write D.have been writing
请问为什么呢

我觉得选C.
sb. have sb. do sth,
have sth. done
这句话中,动作的执行者是一个人.所以要用have sb. do sth.的句式
因此C最为合理.
望采纳~~