The verb “need” expresses that something is important to have. This verb is not normally used in continuous forms （see ......

I think going to school by bike is good for us.　　First of all， riding to school is a wonderful way to exercise and it’......

托妮.莫里森的《所罗门之歌》涉及了美国黑人的生理遗传和家族精神的遗传。这篇文章首先透过主人公奶娃及其姑母派拉特的人生轨迹......