a number of problems ----to be solved though we have had the meeting.a remain b remained c left d leave 为什么不选 d ,而选a

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a number of problems ----to be solved though we have had the meeting.a remain b remained c left d leave 为什么不选 d ,而选a
a number of problems ----to be solved though we have had the meeting.
a remain b remained c left d leave 为什么不选 d ,而选a

a number of problems ----to be solved though we have had the meeting.a remain b remained c left d leave 为什么不选 d ,而选a
问题遗留下来是一种被动态,是被留下来不可能是问题自己主动留下来,所以即使用leave也应该是被动态 left ,而问题仍在一般是用remain 的