--- There is someone 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．may, can’t | B．will, won’t | C．may, mustn’t | D．must, may not |
---When facing some challenges, Jimmy shows great courage.
--- Yes. He is a man who never _________.
| A．goes on | B．gives up | C．runs out of | D．gives back |
______ it rained heavily, no one in our class was late for school.
| A．Because | B．Even though | C．As soon as | D．Until |
Tom _______ up early. But now he gets up very late.
| A．is used to get |
| B．used to get |
| C．was used to get |
| D．is used to getting |
---Can you tell me your ______of success?
---There’s no easy way to learn English well. Just study hard.
| A．duty | B．trouble | C．secret | D．rule |
--- How does your sister learn Russian, Mike?
---She learns it _______ listening to the tapes.
| A．of | B．by | C．in | D．for |