题目内容
–How much difficulty has the team had ________ this problem?
- _________. The members are all good problem solvers.
A. to solve; Nothing B. solving; None C. to solve; None D. solving; Nothing
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题目内容
–How much difficulty has the team had ________ this problem?
- _________. The members are all good problem solvers.
A. to solve; Nothing B. solving; None C. to solve; None D. solving; Nothing