Manyteenagers_______ the old and they often offer their seats to the old on buses.

下列诗句所用的修辞手法，判断正确的一项是（ ）

Would you like to join me for a quick lunch before class?—________，but I promised Nancy to go out with her.

He insisted that he ____ that and that he ____ free. [ ]

h heavy loss in the hurricane, thefarmer didn’t expect to have a good harvest.