Linda usually does her homework in the evening,but this she is------
琳达通常在晚上做作业,但是这个她是-----
前半句说得通,后半句语法不对,而且不完整.
可改成：
Linda usually does her homework in the evening,but tonight she is watching TV.
琳达通常在晚上做作业,但今晚她在看电视.