短句改错
（1）A friend of him went to America last week.
（2）Did you work out it at last just now .
在上面两个句子中,哪个部分是错误的（1）句中选项A.A friend B.him C.went to D.last week （2）A.Did B.work out it C.at last D.just now
(3)I can play ()piano well,but Icannot play ()chess well.
A.the,the B./ the C./ / 还是有其它说法