So many women take up walking as a regular form of exercise every day, which, of course,is to their health.
| A．of useful | B．greatly use | C．of benefit | D．greatly benefit |
Far from perfect though this trip is, I think it’s well worth _____ we paid.
| A．that | B．what | C．which | D．How |
Being a good listener is a kind of quality and that’s ___ it takes to keep friendship.
| A．how | B．what | C．which | D．where |
As is recorded in history, silkworms（蚕）were first raised by a woman in _________ is today Hebei Province．
| A．where | B．the place | C．which | D．what |
Does it make any difference __________ he refuses or accepts the invitation?
| A．whether | B．which | C．if | D．that |
You have not yet answered my question _______ I can join in the party tonight．
| A．whether | B．if | C．which | D．that |