Four students are in the classroom. They are Anna, Tom, Mike and Mary. Their jackets are on the teacher’s desk. The jackets are brown, white, red, and blue. But we don’t know whose they are. We know the boys’ jackets aren’t red and the girls’ jackets aren’t brown. What color is Mary’s jacket? We don’t know. But we know it’s not blue. Tom says, “My jacket is white.” Do you know what color their jackets are?

This is Cara and Ben. They are twins (双胞胎). They are twelve. This is their bedroom. It’s a nice room. There are two beds in the room. The yellow bed is Cara’s and that green one is Ben’s. The twins have one desk and two chairs. The chairs look the same(看起来一样). Cara’s sweater is on his bed. Ben’s coat is on his chair. Their clock, books and pencil-cases are on the desk. Their schoolbags are behind the chairs.

This is a picture of Mr. Li’s family. The man in the middle is Mr. Li. The woman is Mr. Li’s wife. They have two sons. The child behind Mr. Li is Li Lei. He’s twelve. The other in front of Mrs. Li is Li Ming. He is eleven. Li Lei and Li Ming are in the same school, but not in the same grade. Li Lei is in Grade Two. Li Ming is in Grade One. They are good students.

(A) ________ is a lost and found box in our school. There are some things in it. This is a schoolbag. What color is it? It’s brown. That is an eraser. Whose is it? (B)它是你的吗? And what’s that? It is a watch. Oh, I find my keys. One is to my classroom, and (C) the other is to my house. That phone is Mingming’s. This baseball is his, too. Three books, two dictionaries and some nice pens are also in the box. Whose(谁的) are they? I don’t know.