The two elderly sisters, ____ so long, held each other.
| A．being separated | B．having been separated |
| C．to be separated | D．had been separated |
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 fromyou 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 |