Question

下列句子语法有错误吗？求解答

1.After looking out the window for hours, I found the rain passed.
2.To swim properly, a course of instruction is necessary.
3.While we were climbing the hill, the rain began to fall．
4.It’s wise for beginning drivers to stay out of heavy traffic until they have more experience.
5.Some people like apples, but watermelons are preferred by others.

Answer 1

1. After looking out of the window for hours, I found the rain passed.
   2.To swim properly, we need a course of instructions （复数加s）.
   3.While *we were去掉* climbing the hill, the rain began to fall．
   4.It’s wise for driving beginners to stay out of heavy traffic until they have more experience.
   5.Some people去掉 like apples, but watermelons are preferred by others.

   黑体为改后。