:下列各句均有一处错误，请改正。
1.In no case we must imagine that material comfort is
the final goal of human happiness.
2.Only after we have made a mistake our eyes are
opened.
3.Her little brother must practice the violin every
night.
4.You have to finish your homework before watching TV.
5.I’ll let you use the bicycle only if you keep it in
good condition.
6.Only if the storm would stop!
7.If only it is nice out can the athletic meeting be
held.
8.A reporter must have a good nose to the news.
9.The police accused the man with murder.
