29.Not only ------- a promise,but also he kept it.A.has he m

29.Not only _______ a promise,but also he kept it.A.has he made B.does he make C.he made D.di
29.Not only _______ a promise,but also he kept it.
A.has he made B.does he make C.he made D.did he make
30.Not until his comrades criticized him _____to admit his mistake.
A.had he begun B.began he C.did he begin D.does he begin
我要问的这个问题一直让我很纠结,比如说29,翻译他不进许下了承诺,而且实现了他,关键是kept是过去时,那么之前肯定也是过去啊或者是过去的过去,为什么不是Did he made呢?30同理选C,为什么是begin呢?而不是began