题目内容：

选择正确答案,并简要说明理由
1.I think Chinese is as_____ as English.
A.useful B.more useful C.most useful D.the most
2.I_____ my homework when my father came in.
A.am doing B.was doing C.do D.was did
3.What a _____ headache!You seem_____ ill.
A.terrible; terribly B.terribly; terrible C.terrible; terrible D.terribly; terribly

优质解答

1.A 形容词同级比较
2.B 当父亲进来时,用过去进行时
3.A headache为名词用形容词修饰；ill形容词用副词修饰