A．showB．requireC．collectD．discover

【C8】A．preventB．requireC．assistD．forbid

【C17】A．showB．affordC．expressD．offer

【C4】A．spendB．requireC．settleD．retain

【C8】A．showB．affordC．expressD．offer

【C4】A．leadB．connectC．collectD．communicate

60._________A. playB. hearC. collectD. analyze