If you receive a letter （offering） you the job,you must replay as soon as possible.为什么
问题描述：
If you receive a letter （offering） you the job,you must replay as soon as possible.为什么
答
received 表示已经收到邮件
reply 尽快回复
if you received a letter that offering you the job.please reply to us as soon as possible
答
应该用不定式，表示想要提供。to offer
另外，replay应该是reply
答
填offering是正确的选择,没错
不过你打错了一个字
reply不是replay