When you communicate with people, it is not unusual to find yourself in a situation ____ you have to politely decline an offer.
— Where was your dad at this time last night? —He was talking with my uncle I was looking for some information on the Internet. A. after C. until C. since D. while
—John is so excited. Did he win the competition? —Yes. He was lucky and he had one minute to complete the special task, no more and no less.
— It’s one of the things in the world to stay with friends. —I agree. It always makes us relaxed.
—How much do you know about Taiwan, Li Fen? —Taiwan and the mainland have a lot in common. They a lot of history and culture.
—Can you tell the difference between these two pictures? —Difference? Oh, no. They look quite .