Guest: Well I have to be off. Thank you for your wonderful dinner. Host: ______.A.You e

● A well－designed system should be（73）. ①easily understood ②reliable ③straightforward to i

—What sort of house do you want to have？ Must it be big？ —Well, it ______ be big. Thats no

During the period of ______ from oil heat to gas heat the furnace will have to be shut off

I would have invited her to the party but I ___ her well.A、don’t knowB、didn’t knowC、doe

I mean I have plans and I plan to see them（).A、throughB、byC、onD、off

— I’m afraid I’ve got to be running along. See you later.— （).A、Very well.B、My pleasure