A.one | B.two | C.first |
A.in the classroom | B.on the first floor | C.at home |
A.to; on | B.to; in | C.on; at |
A.teachers’ | B.the teacher | C.teacher |
A.Good afternoon. | B.Good morning. |
A.teachers | B.teachers’ | C.teacher |
A.on | B.in | C.at |
A.Welcome to China. |
B.Welcome to our school. |
C.You're welcome. |
A.Sorry. | B.Excuse me. | C.Hello. |