We do have the most supportive parents and teachers, ________will make a difference to our study, unless all of us make every effort .
| A．none of them | B．all of them |
| C．none of whom | D．all of whom |
—Which driver was to blame?
—Why, _______！It was the child’s fault, clear and simple. He suddenly came out.between two parked cars.
| A．both | B．each | C．either | D．neither |
I_______________ that all windows are shut. I did it.
| A．make sure | B．am sure | C．make clear | D．am clear |
This kind of cloth_______________well and_______________long.
| A．washes; is lasted | B．is washed; lasted | C．washes; lasts | D．is washing; lasting |
Jumping out of_______________airplane at ten thousand feet is quite _______________ exciting experience.
| A．/; the | B．/; an | C．an; an | D．the; the |
. Some birds fly_______________in winter and some stay in the north.
| A．south | B．the south | C．in the south | D．to south |