-----the morning of Sptember 10th,we are going to give our teacher some flowers.A.On B.In C.At D./
问题描述：
-----the morning of Sptember 10th,we are going to give our teacher some flowers.
A.On B.In C.At D./
答
用on，因为morning的后面有具体的某一天，是连起来的，所以要对具体的某一天来选介词
答
具体的时间前面用“on”所以选A
答
无论是涉及到某一天,还是某一天的某个时候,都用介词on,选择A.On
答
A
on the morning of