John was about to go back to sleep ______ suddenly his bedroom became as bright as day．
| A．after | B．when | C．while | D．until |
Do you want a friend ______ you could tell everything to?
| A．which | B．whose |
| C．whom | D．he |
—May I see your ticket, please? I think you ________ in my seat.
—Oh, sorry. My seat is upstairs.
| A．are sitting | B．sit |
| C．sat | D．have sat |
The teacher told the kids that light ________ faster than sound.
| A．traveled | B．had traveled |
| C．is traveling | D．travels |
Have you heard the traffic ________ that happened in Yatai Street last week?
| A．accident | B．affair |
| C．incident | D．event |
—Excuse me, can you tell me the way to the supermarket?
—OK. Go ____ along the street, turn left and you'll see a tall building. That is the supermarket.
| A．mostly | B．normally |
| C．straight | D．aimlessly |