I kept on _______to her until the train disappeared completely in the darkness.
| A．waved | B．to wave | C．waving | D．and waved |
Since I won the big prize, my telephone hasn't stopped ringing. People ____to ask how I am going to spend the money.
| A．phone | B．will phone | C．were phoning | D．are phoning |
John ___ be a basketball player.He’s much too short.
| A．may | B．mustn’t | C．can't | D．should |
See who’s there! ____ it be Mary?
| A．May | B．Must | C．Can | D．Will |
“Can I take it away?” “You ___ better not.”
| A．should | B．could | C．would | D．had |
“Let’s go to the library, shall we?” “____”
| A．NO, I can't | B．Yes, I will | C．Yes, thank you | D．NO, we’d better not |