9Unit4自我检测第7题答案
2 1 3 7 6 4 5
10Unit4自我检测第8题答案
(1) No, he diddt
(2)He dropped his schoolbag
(3)He lost his homework.
(4)Yes, he was.
(5)He ran to school.
11Unit4自我检测第9题答案
12Unit4自我检测第10题答案
(1)B
(2)D
(3)C
(4)A
(5)B
