—I will go to Harbin for my summer vacation. What about you?
—I haven’t decided where ______.
A．go B．went
C．going D．to go
—Driving less, walking more is good for our health.
—So I'd rather____an hour's walk to work than consider____a car.
A．take, drive B．take, to drive
C．take, driving D．taking, driving
．—Dad, why must I stop ______computer games?
—For your health, my boy.
A．play B．to play
C．to playing D．playing
—I didn’t hear you come in just now.
— That’s good. We tried _____ any noise, for you were sleeping.
A．not make B．not to make
C．to make D．making
I always tell my students ______ on the road because it’s really dangerous.
A. not to play B. to play not C. not playing D. not play
The girl was often heard happily in her room.
A．sing B．to sing
C．singing D．sings
