下列缩略语正确的是_______.
| A．NbA | B．KG | C．Tv | D．BBC |
---____ do you exercise, Miss Lin? ---Once a week.
| A．How long | B．How often | C．How far | D．How soon |
I didn’t know at first, but later we became good friends.
| A．who is the boy | B．who the boy is |
| C．who was the boy | D．who the boy was |
I English since I was five years old.
| A．learn | B．learned | C．will learn | D．have learned |
If you him the truth, you’ll prove how honest you are.
| A．tell | B．will tell | C．told | D．have told |
John to London to watch the Olympic Games next week.
| A．flies | B．flew | C．will fly | D．has flown |