单选题 They tossed your thoughts back and forth for 6var an hour, but still could not make ______ of them.

【正确答案】 D
【答案解析】make sense of理解,弄懂,为固定搭配;impression印象;comprehension理解(力),了解;meaning意义,意思。句意:他们将你提出的想法考虑了大约一个小时,但仍不能理解你的意思。