According to the timetable，the airplane will cover the ________from Beijing to Shanghai in an hour and a half.
| A．area |
| B．reach |
| C．distance |
| D．speed |
The club, _ _ 25 years ago, is holding a party for past and present members.
| A．founded | B．founding | C．being founded | D．to be founded |
Have you sent thank-you notes to the relatives from _ _ you received gifts?
| A．which | B．them | C．that | D．whom |
There is much truth in the idea _kindness is usually served by frankness.
| A．why | B．which | C．that | D．whether |
When Peter speaks in public, he always has trouble _ the right things to say.
| A．thinking of | B．to think of | C．thought of | D．think of |
I have a tight budget for the trip, so I'm not going to fly _the airlines lower ticket prices.
| A．once | B．if | C．after | D．unless |