- 搜標(biāo)題
- 搜題干
- 搜選項(xiàng)
單項(xiàng)選擇題
（）the survivors known more of how to cope with cold water in the sinking of MV Titanic in 1912 countless lives（）.
A.Have／could have been saved
B.Have／could have saved
C.Had／could has saved
D.Had／could have been saved
