– There’s somebody at the door. Who ____ it be? Is it the postman?
-- No. It ______ be him. It’s just seven o’clock. It’s too early.
| A．must, may not | B．will, won’t | C．may, mustn’t | D．may, can’t |
Workers can’t be made ________ for twelve hours a day.
| A．work | B．to work | C．working | D．worked |
--Did you see who the driver was?
---No, the car ran so fast _____ I couldn’t get a good look at his face.
| A．that | B．which | C．as | D．after |
---Wow, so many new houses! I can’t believe that. It used to be a poor village.
--- Yes,_________ has changed here.
| A．Nothing | B．something | C．Everything | D．Anything |
--Is your father a teacher?
---well, he _______.
| A．used to | B．was used to | C．used to be | D．is used to be |
---Don’t play with fire. It’s dangerous.
--- ____________.
| A．Yes, I do | B．Yes, I will | C．No, I don’t | D．Sorry, I won’t |