– Sir, we have failed to work out this problem. What is exactly the right way?
--- Look. Only in this way , but you boys a wrong way.
A. you can work it out; take
B. you can work out it; take
C. can you work it out; take
D. can you work it out; took
网友回答
A. you can work it out; take
B. you can work out it; take
C. can you work it out; take
(答案→)D. can you work it out; took
解析：第一空考查倒装句，only + 状语放在句首，使用部分倒装，可排除A和B两项，第二空考查时态，根据语境用错方法的动作在过去，所以用一般过去式，故选D。