一道英语单选,求解释Mr Smith ( )short stories ,but he ( ) a TV play th

一道英语单选,求解释
Mr Smith ( )short stories ,but he ( ) a TV play these days.
A. is writing ```is writing B.is writing ```writes
C.writh ```is writing D/writes```writes
答案是C···第二个括号我没有疑问.可是第一个为什么是write?史密斯先生平时写小故事,是不是应该用一般现在时writes?又想想又觉得wrote也行,以前写小故事···
请帮忙解释一下为什么第二个括号要填write,writes 和wrote哪里错了?
我是英语白痴···
C选项打错了····应该是write
难道答案错？ 那么wrote可以吗？