问题:
It was the training ____ he had as a young man ____ made him such a good engineer.
A.what; that
B.which; that
C.that; which
D.that; what
It was the training ____ he had as a young man ____ made him such a good engineer.
A.what; that | B.which; that |
C.that; which | D.that; what |
参考答案: