一、选择填空 （共15小题，每小题1分，满分15分）
从A、B、C、D四个选项中选出可以填入空白处的最佳选项。
1. —It’s so hot today.What about going swimming?
— !
A.Never mind B.Good idea C.You’re welcome D.Don’t worry
2. I asked tw o students the way to the post office,but of them knew.
A.both B.either C.none D.neither
3. Jim is always so busy he has little time for his family.
A.if B.until C.that D.which
