In an open boal,the three men,___ an enginner,met a storm on the sea .
A.one of them were
B. one of whom was
C.one of them was
D. one of whom were
选什么?为什么?
In an open boal,the three men,___ an enginner,met a storm on the sea .
A.one of them were
B. one of whom was
C.one of them was
D. one of whom were
选什么?为什么?