完成句子(从下面所给词或短语中选出一个恰当的词，并用其恰当的形式填入句中，使句子的意思正确、通顺，每词限用一次)(满分5分)

Can you     these fat men climbing the mountain?
They    their journey because of the heavy rain.
This is the cause for which we have been   .
He       saw that he was mistaken.
----Have you nearly finished?
----        , I have only just begun.