【C17】A．quarrelB．explainC．argueD．prove

【C15】A．predictB．acknowledgeC．argueD．ignore

【C8】A．saysB．tellsC．showsD．proves

【C16】A．countB．explainC．accountD．look

A．remarkB．discussC．recallD．argue

【C8】A．makeB．judgeC．concludeD．prove

【C5】A．inferB．explainC．interpretD．express