题目内容
（请给出正确答案）
[主观题]
It was not until I ______ your letter that I ______ all about the matter.A．have read; knew
It was not until I ______ your letter that I ______ all about the matter.
A．have read; knew
B．would read; had known
C．read; had known
D．had read; knew
如搜索结果不匹配，请 联系老师 获取答案
