What’re you doing, Jack?—I’m looking for some information about famous people ______ I need to make a poster.

I wish to thank Professor Smith，without________help I would never have got this far.(2012·天津，7)

下列各句中，划线的成语使用有错误的一项是（3分）（）

Why is he feeling down today?—Because the suggestion he________has been turned down.

Much _____ to be settled.