The pilot,(飞行员) whether ______ or on purpose, made the plane do a sharp turn.(急转弯)
| A．by accident | B．at times | C．suddenly | D．at once |
---Can you tell me _______?
---With Lucy’s help.
| A．when you did it so well | B．when did you do it so well |
| C．how you did it so well | D．how did you do it so well |
--_______do you eat fast food?
--Twice a week.
| A．How long | B．How soon | C．How often | D．How far |
I didn’t hear you because I __________ the news on the radio.
| A．listen to | B． am listening to | C． listened to | D．was listening to |
---Is ____ready for the party?
---Not yet. The desk hasn't been set.
| A．something | B．everything | C．nothing | D．anything |
---Help! Help! Police!
---_______, Sir. What’s the trouble?
| A．Calm down | B．Be quiet | C．Shut your mouth | D．So rude |