题目内容

If you are weak ____ a subject, ______your teacher for advice can help.
A．to, askingB．in, ask
C．to, to askD．in, asking
B

试题分析：句意：如果你有一科弱，那就向老师寻求能帮助你的建议。In 在; 主句为祈使句时，If条件状语从句用一般现在时，故选B.
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