It is no use arguing _______ the plan because it has been rejected.
正确答案： C
本题解析：
argue 作动词时，意为 “争论;争吵;争辩 ”。argue for 意为 “为 …… 辩护 ” ;argue with sb about / over sth 指 “就某事和某人争论 ” ;argue against意为 “据理反对;争辩 ……”。根据句意，应该用 for。
The professor asked a question, and David ________ a good answer.
He would have given you more help, if he ________ so busy.
After months of voyage, Columbus arrived in ______ later proved to be a new continent.
It rained hard yesterday, ______ prevented me from going to the park.
It is important to ________ your skin from the harmful strong sunlight.
He was ______ to withdraw from running for the presidency.
The two girls competed with each other ______ the highest mark.
If the operation ________ carefully prepared, it would not have been successful.