Getting _______ in the forest is very dangerous.
A. losing B to lose C. lost D. being lost
---- Was it by cutting down staff _ _she saved the firm?
---- No, it was by improving work efficiency.
| A．when | B．what | C．how | D．that |
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 |