Istillrememberthedays____westudiedtogether.

"The lecturer was a tall thin man with white hair." "Then it _______Dr.Fell because he is short and fat.It_____Dr.Jones;he is thin."

He borrowed a book the other day ， the author ____ is a worker.

Whoistheman____(你刚才在操场和他握手)?

Doyouknowthereason____hewaslate?