i am sorry for ___ late.(be)the boss made his men do work 12 hours a day.please come eairly don't keep me wait for a long time.some of as are good at singing.请问这三题对吗?
问题描述：
i am sorry for ___ late.(be)
the boss made his men do work 12 hours a day.
please come eairly don't keep me wait for a long time.
some of as are good at singing.
请问这三题对吗?
答
1.being