---I didn't apologize to him for being unable to inform him of the change in the plan.
---But you________.
| A．ought to have |
| B．have to |
| C．should |
| D．must have |
The audience ______ when they heard the humorous story.
| A．burst into laughing | B．burst out laughter | C．burst into laughter | D．burst in laughing |
He pretended to be English, but his foreign accent ________.
| A．threw him away | B．put him away | C．gave him away | D．carried him away |
At this time tomorrow ________ over the Atlantic.
| A．we’re going to fly | B．we’ll be flying | C．we’ll fly | D．we’re to fly |
He had to be reminded two or three times ________ he could avoid making the same mistake.
| A．before | B．until | C．when | D．after |
If you come_____ second in the race, you’ll get _____qualification to compete for the next round.
| A．the, a | B．/, the | C．the, / | D．a, the |