I enjoy playing computer games, but I can't spend too much time ________ that.
A．in B．on C．for D．to
________ is bad for your eyes ________ TV too much.
A．It; to watch B．It; watching
C．This; to watch D．This; watching
She is ________ poor ________ buy that nice dress.
A．so; that B．too; to
C．to; too D．that; so
—How often do I need to feed the dog?
—It ________ food every day, or it will be hungry.
A．must give B．must be give
C．must be given D．must be gave
—It's difficult to get to the other side of the river.
—I think a bridge ________ over the river.
A.should be built B．should build
C．will build D．has built
Flowers_____ along the road last year.
A．plant B．planted
C．are planted D．were planted
