if you don not know hou to do it ,piease ask your teacher_some_ A_其他解答

if you don not know hou to do it ,piease ask your teacher_some_ A.for,help B.for,helps

人气：350 ℃　时间：2019-09-30 19:28:13

解答

选A
help不可数,无复数形式.
ask sb. for some help 向某人求助.