Question

They all looked down upon him. He was __________ a singer. A

Answer 1

C

由look down upon表示贬义可知后句应表达“他只不过是个歌手而已”。not more than与数字连用；less than少于；more than用于名词前，表示“不仅仅是”。no more than表示“仅仅”，符合句意。