单项选择题
A.He will be practicing soccer. B.He has work to finish in time. C.He will be attending a meeting. D.He has a tough problem to solve.
A.Literary works calling for the abolition of slavery. B.Religious scripts popular among slaves in America. C.A rich stock of manuscripts left by historical figures. D.Lots of lost works written by African-American women.
A.It is under adequate control. B.It is traditional but colorful. C.They are more or less isolated from the outside world. D.They have ample opportunities to meet the opposite sex.