If their marketing plans succeed, they ____ their sales by 20 percent.

A. will increase      B. have been increasing   C. have increased    D. would be increasing

As they ______ their way through the desert the sun beat down upon them with more fierceness.

A．went             B．took              C．came             D．made

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)

1.Can you      these fat men climbing the mountain?

2.They     their journey because of the heavy rain.

3.This is the cause for which we have been    .

4.He        saw that he was mistaken.

5.----Have you nearly finished?

          ----        , I have only just begun.

 They had quarrelled all the time before they_____their engagement.
   A. broke off              B. broke through       C. broke down     D. broke out

The children are busy doing piles of homework, for they _______ their end-of-term exam soon.

A．will be taken       B．take              C．are taking         D．would take