Not work well.,Increase the population number.,Delay th……

单项选择题A．BerlinB．MainzC．WashingtonD．CD. Germony

单项选择题A．People took it for granted.B．People always questioned this value.C．Girls do less than the boys in the family.D．Boys need more nutrition than girls.

填空题dean

单项选择题English has undergone dramatic periods. The period of _______ is roughly from 449 to 1100.

单项选择题_______ looks at language from a psychological point of view, and to him, competence is a property of the mind of each individual.