this is the second time she / improvement on that equipment; a:has made;
问题描述:
this is the second time she / improvement on that equipment; a:has made;
答
This is the second time that she has made improvement on equipment.
OK?
答
答案为has made
这是固定句型:this/it is the first/second/third...time+that-从句,意思是:第几次干某事.
在从句中要求用现在完成时.