以下每个句子均有一处错误，请找出，并按下列情况改正；
此行多一个词，把多余的词用斜线（\）划掉，在该行右边横线上写出该词，并也用斜线划掉。
此行缺一个词，在缺词处加一个漏字符号（∧），在该行右边横线上写出该加的词。
此行错一个词，在错的词下划一横线，在该行右边横线上写出改正后的词。
注意：请在答题卡上作答。
【小题1】His grandpa died three years before.
【小题2】I’m sorry. I know only a few English.
【小题3】She plays piano every day.
【小题4】His father has never been to Europe. He hasn’t been there, too.
【小题5】If you will study hard, you will pass the exam.
【小题6】This is the tallest building which I have ever seen.
【小题7】The new school is now three times as bigger as the old one.
【小题8】The traffic accident was happened at the corner of the street.
【小题9】The flowers in the field smell sweetly.
【小题10】The manager asked his men not waste any more time. before 改成ago
网友回答
(答案→)before 改成ago
解析：
【小题1】three years ago和过去时连用，three years before和过去完成时连用。
【小题2】a little修饰不可数名词，a few修饰可数名词
【小题3】演奏乐器要加定冠词the，plays the piano
【小题4】too.用于肯定句，either用于否定句
【小题5】if条件句不能用将来时，去掉 will
【小题6】定语从句的先行词被序数词，最高级修饰，定语从句用that引导。
【小题7】同级比较用as big as
【小题8】happen不能用被动式，去掉was
【小题9】smell是连系动词，不能用副词：sweetly ，要用形容词sweet
【小题10】考查词组：ask sb to do sth。