You'll never best Simon at chess, ____hard you try.
however
therefore
although
no matter
參考答案:显然是however嘛~~~
no matter不能这样用,一定要跟个疑问代词的(如what/how/where)
然后就是tangcailian 讲的啦:这里however相当于no matter how hard you try.
并且这里hard提前,只有两种可能,前面是否有否定副词或者是however这类的了,所以其它两个都马上排除.
这是这样~~:)
