Malaysia Airlines Flight 370 ___________ course and turned back toward Kuala Lumpur -- but there were no indications from the pilot that he was doing so.
| A．must have changed | B．could have changed |
| C．might have changed | D．should have changed. |
相关试题
— I want to learn tennis. Would you like to help me?
— . But learning tennis is no walk in the park.
| A．No kidding | B．No wonder |
| C．No problem | D．No way |
— Anything to drink? What about coffee?
— Er… I think I'll have a cold drink coffee.
| A．other than | B．more than | C．less than | D．rather than |
I like such houses with beautiful gardens in front, but I don't have enough mone
y to buy .
| A．it | B．one | C．that | D．this |
The Japanese suffering from the worst natural disasters .
| A．are; ever since | B．are; of all time |
| C．is; ever since | D．is; of all time |
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