问题

So hard ______ in the past few months that he hasmade great progress in English.— I can see that; only a few mistakes ______ in theexam.
A:neither ofthem which
B:he hasworked did he made
C:he hasworked he made
D:has heworked he made
B:he hasworked did he made
C:he hasworked he made
D:has heworked he made
正确答案是: