英语高手请进!~

cheap（反义词-expensive
friend（形容词）-friendly
suggest（名词）-suggestion
usual（反义词）-seldom
hear（过去分词）-heard
close（副词）-closely
relax（形容词）-relaxed
awful（副词-awfully
discuss（名词-discussion
visible（反义词）-invisible
suit（形容词）-suitable
patiently（反义词）-impatient