改错，句中缺少单词，请在恰当位置添加。

Millions upon millions people excitedly got to the square at the wonderful news.

改错，句中缺少单词，请在恰当位置添加。

A big bear ran out from a tree.

改错，句中缺少单词，请在恰当位置添加。

He came on foot instead of bike.

改错，句中缺少单词，请在恰当位置添加。

—Are you sure that our team will win?

—Yes. I'm sure it.

改错，句中缺少单词，请在恰当位置添加。

The headmaster wasn't present the meeting yesterday.

改错，句中缺少单词，请在恰当位置添加。

Xiao Ming is preparing the exam while his mother is preparing supper.

改错，有一个词是多余的，请选出。

The next day she returned the book back to the library.

改错，有一个词是多余的，请选出。

You may begin with Step by Step first to improve your listening.

改错，有一个词是多余的，请选出。

Help yourself to eat some fish, Mr. Jones.

改错，有一个词是多余的，请选出。

In winter, if you put a mirror in the front of your mouth, you'll see it covered at once with little drops of water.