A、 not treat
B、not treated
C、 C untreated
D、 Both B and C
答案：D
A、 not treat
B、not treated
C、 C untreated
D、 Both B and C
答案：D
A. am
B. have been
C. was
D. had been
A. At a meeting.
B. At a studio
C. A home.
D. At school.
A. They can make us happy.
B. They can promote our image.
C. They are not necessary.
D. They are what we need.
A. A teacher and an officer.
B. A teacher and a parent.
C. A teacher and a reporter.
D. A teacher and a student.
A. mustn＇t
B. may not
C. can＇t
D. needn’t
A. They were found by Border Patrol Ka officials after getting lost.
B. They were arrested for accidental (偶然的) border crossing.
C. They invented a cell phone game called Pokemon Go."
D. They quarreled with their mother and left home for America.
A. Areasonable rd,ato
B. Good condition.
C. Used furniture.
D. Agood size.
A. Financial support.
B. Caring teachers.
C. Help with classwork.
D. A welcoming space.
A. Mother and son.
B. Brother and sister.
C. Husband and wife.
D. Father and daughter.
A. Six.
B. Five.
C. Four.
D. Three.
