五．单项选择 ( 共10小题，每小题1分，共10分)
请从下列每小题所给的A. B. C. D. 四个选项中，选出可以填入空白处的最佳答案，并在答题卡上按要求作答。
26. --- Good morning, Miss Zhang!
--- ______________!
A. Good morning B. Good afternoon
C. Good evening D. Good night
27. There are four people _______ my family.
A. on B. at C. in D. of
28. They are the students of ________.
A. grade 7 B. Grade 7 C. 7th grade D. Grade 7th
