Many people believe we are suffering from environmental disaster _____we radically(彻底地) change the way we live.
| A．but | B．although | C．unless | D．so |
He is doctor at all. Don’t trust him.
| A． no | B． not | C．any | D．a |
He is a member of our .
| A．brain power | B．brains power | C．brain powers | D．brains powers |
----Sorry, Michelle is a little shy.
----Never mind, I be that way when I was her age.
| A．would, at | B．used to, × | C．would, × | D．used to, at |
----How do you deal with disagreements between the company and the customers?
----They key the problem is to meet the demandby the customers.
| A．to solving; making | B．to solving; made |
| C．to solve; making | D．to solve; made |
a fire, hotel guests are asked to remain calm.
| A．As a result of | B．In the event of | C．By reason of | D．In the time of |