Examiners don’t care what you say, they care how you say it.  So, as long as you speak correctly, i.e. your grammar is good, you will get a higher score. 考官并不关心你说的内容，他们更关心你是怎么说的。因此，只要你说的是对的，如果再加上你好的语法，你将会得到满意的高分。