59._________A. forB. inC. withD. by

Salty water is generally harmful ______ plants.A、forB、toC、withD、over

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He has studied very hard ____ he came to our school.A、forB、inC、since

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What are we going to do _______ the thief？ Sending him to prison？A: forB: byC: withD:

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Girls are usually a little weaker than boys __________ mathematics.A、atB、 inC、withD、as

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He passed the examination______the satisfaction of his parents.A．forB．toC．withD．in

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Visitors are asked to comply _____ the regulations.A.atB.inC.withD.on

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.55._________A.on B.inC.withD.about

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