题目内容
(请给出正确答案)
[主观题]
______ an answer, he decided to write another letter to them.A.ReceivingB.Not being receiv
______ an answer, he decided to write another letter to them.
A.Receiving
B.Not being received
C.Having not received
D.Not having received
如搜索结果不匹配,请 联系老师 获取答案