-I tried out the math problem but I failed． -Why not it some other way? [ ] A．wo
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![-I tried out the math problem but I failed． -Why not it some other way? [ ] A．wo](/pic/43_898904.jpg)
－I tried ________ out the math problem but I failed．
－Why not ________ it some other way?
[]A．working, to try doing
B．to work, try doing
C．to work, try to do
D．working, to try to do
试题答案
答案：B