I’m sure your suggestions will _____ the problem.
A．contribute to solvingB．contribute to solve
C．be contributed to solveD．be contributed to solving
A
考查語態(tài)。主語your suggestions和動詞contribute是主謂關(guān)系，所以要用主動語態(tài)，排除C,D；contribute to，有助于，to是介詞，后面要用doing形式，所以選A。
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