从A、B、C和D四个选项中，选出可以填入空白处的最佳选项。
1 –Hello, ______ seen you for a long time! How are you?
--Fine. Thanks.
A. Have B. Haven’t C. Never have D. Not have.
2.And study after _____ study finds that ____ garden is the single most important thing in finding the quality.
A. a, / B./, / C./ , a D. the, a
3.Our goals do not _____ helping you get a good grade.
A. include B. contain C. admit D. enter
4. _______ the schedule, they should have arrived yesterday.
A. Ahead of B. According to C. Regardless of D. But for
