题目内容：

Correct the mistakes in the following sentences.

1.Eighty percents of the population of our country are farmers.

          A           B         C        D

The underlined part ________is wrong, it should be________.

2.Everyone is tired now. Let’s have a ten minutes’ break, shall we?

             A       B           C             D

The underlined part ________is wrong,it should be________.

3.The street is five kilometers longer and fifty meters wide.

      A          B        C                 D

The underlined part ________is wrong, it should be________.

4.Nobody of our class can jump farther than Tim in the long jump.

A    B                  C                 D

The underlined part ________is wrong, it should be________.