Can I come today or tomorrow?
is OK.I'm busy today and tomorrow.( )
A.EitherB.NeitherC.EachD.None
Don't forget ________ the windows before you leave.( )
A.to closeB.closingC.closed
Is our playground still over there?
No, a large library ________ on it two years ago.( )
A.is builtB.was builtC.has built
Slow down! Someone ________ the road.
Easy. I will.( )
A.has crossedB.was crossing
C.is crossing
Playing computer games too often ________ bad for us.( )
A.amB.isC.are
Stephen Hawking, a great scientist, died ________ the morning of March 14, 2018.( )
A.onB.inC.at