I still remember the days ____ we studied together.
Whoistheman____(你刚才在操场和他握手)?
"Thelecturerwasatallthinmanwithwhitehair.""Thenit_______Dr.Fellbecauseheisshortandfat.It_____Dr.Jones;heisthin."
He borrowed a book the other day ， the author ____ is a worker.
Thankyouforyourhelp,_____wecouldnothavefinishedtheworkintime.
