_____time goes by, my grandfather’s memory seems to get worse and worse.
A.Though B.As C.Because D.Since
Mr. Li lent me a book last week, _____I have learned a lot about earthquakes.
A.to which B.for which C.from which D.with which
--- Have you moved into the new office building?
---Not yet .It ______
A.is decorating B.has been decorated
C.is being decorated D.has been decorating
Tourists were told _____their sunglass to protect their eyes from the strong sunlight
A.to not take off B.not to take off
C.not taking off D.not take off
She opened the handbag but couldn’t find the money _____she was to buy dog food.
A.for which B.with which C.by that D.of that
--May I watch TV for a while, Daddy?
--If you _____, remember to turn it down a bit.
A.Should B.must C.could D.might