Jim: I have a pair of tickets for an opera Saturday night. Would you like to go? Cindy: I don't think so. ______.

I don't know his address, ______.

According to the second paragraph, the 50 to 60 booking phone calls are from those who ______.

A．which

Wang (guest): That was a delicious dinner. Mrs. Willis (hostess): ______. Would you like to go to the living room now? It's more comfortable there.

At the foot of the mountain ______.