My mother bought an MP4 player for me，but I don’t know．—Let’s read the instructions first．

It was not until dark _____ he found _____ he thought was the correct way to solve the problem. [ ]

_____ the poem a second time, the meaning will become clearer to you.[ ]

My watch has been losing time for the past week. — It probably needs ______. [ ]

I guess we’ve already talked about this before but I’ll ask you again just __