选择题：Passage FourWhen the guests sit down at a dinner t

Passage Four
When the guests sit down at a dinner table, it is customary for the men to help the ladies by pushing their chairs under them. Some Americans no longer do this, so the visitor must notice 251 do and do 252 . Until the meal is 253 , if the dinner is in a private home, a guest may avoid embarrassment by leaving the talking 254 someone else. Some families have a habit of offering a prayer of thanks before they eat. 255 . If a prayer is offered, everyone 256 quietly with bowed head until the prayer is over. If the family does not 257 the custom, there is no pause in the conversation.
258 dinner, guests usually stay for two or three hours, 259 the thoughtful person is careful not to overstay his or her welcome. The host and hostess may 260 a guest to stay longer in order to be polite, but most dinner parties break up at about 11 o’clock.
251.A. that others B. which others C. others D. what others
252.A. likely B. alike C. likewise D. unlikely
253.A. in the way B. on the way C. under way D. out of the way
254.A. for B. to C. with D. about
255.A. So do other families B. The same is true of other families
C. Other families do not D. Nor do other families
256.A. does not sit B. sits C. is not seated D. sit
257.A. follow B. reserve C. adjust D. characterize
258.A. Being followed by B. Finished C. Following D. Havi