–How long has Robert ________?--Since 2004.
-What did you do in today's history class? -We talked about the characters____ achieved fame in American history.
-Why are you so late getting home? -Our teacher didn’t let us go____ we had finished our homework.
-Why are there so many people in the restaurant? -It starts business today and the drinks____ for free.
I____some information on the Internet for my trip in the coming winter holiday.
--Has Tommy finished his project yet? --Maybe not. He ___on it at lunch time. Let's go to have a look now.