Wind power is an ancient source of energy we may return in the near future.
| A．on which | B．by which | C．to which | D．from which |
--- Got your US visa?
---Not yet. I too busy to apply for an appointment, so I didn’t go to Shanghai last week?
| A．was | B．have been | C．had been | D．would be |
A case of suspected food poisoning in New York has led to 6 high school students to hospital.
| A．being sent | B．sent | C．sending | D．to be sent |
---The manager finally agreed to our new marketing proposals.
---It never occurred to me you could succeed in persuading him to change his mind.
| A．which | B．what | C．that | D．if |
---Is there anything else I can do for you, Jeff?
---No. Thanks. I really appreciate when you lent all your notes to me before the exam.
| A．one | B．it | C．that | D．this |
---Mary knocked into a tree last night while driving, but she is all right.
---She is lucky. She herself badly.
| A．should injure | B．might injure |
| C．should have injured | D．could have injured |