Some aspects of a pilot’s job _______ be boring,and pilots often _______ work at inconvenient hours.
| A．can; have to | B．may; have to |
| C．have to; may | D．ought to; must |
We should remember to save water resource and not to leave the water_____all the time.
| A．to be running | B．to run | C．running | D．run |
Although her ability in art has not yet developed, she has great____ as an artist.
| A．success | B．potential | C．victory | D．possibility |
She got into a(n) _____when she thought she'd forgotten doing homework.
| A．trap | B．delight | C．panic | D．argument |
---How much will I pay for a night?
---Prices_____from room to room.
| A．vary | B．arrange | C．divide | D．range |
The mother was filled with _____ about her daughter's health,so she asked the doctor for help.
| A．eagerness | B．anxiety | C．disappointment | D．fright |