---______ he managed to solve the problem?
---Oh,he turned to Professor Lee for advice.
A.Was it how that |
B.Was it that how |
C.How was it that |
D.How it was that |
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---______ he managed to solve the problem?
---Oh,he turned to Professor Lee for advice.
A.Was it how that |
B.Was it that how |
C.How was it that |
D.How it was that |