Itisnotuntilrecently
問題詳情：
It is not until recently ______ the scientists have found proof of there being water on Mars.
A. when B. that C. how D. what
【回答】
B知識點：強調句
題型：選擇題
問題詳情：
It is not until recently ______ the scientists have found proof of there being water on Mars.
A. when B. that C. how D. what
【回答】
B知識點：強調句
題型：選擇題
