IspendtimeasmuchasIcould_____themathproblem.A.workoutB.toworkoutC.workingoutD.toworkon
2022-06-26 26次 反馈错误 加入收藏 正确率 : 100%
题目内容：
I spend time as much as I could _____ the math problem.
A.work out
B.to work out
C.working out
D.to work on
优质解答
C
我尽可能地花时间来解决数学问题
这里的句型是spend time in doing sth
in 可以省略
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