Please use and make sentences.

1. The content of this book is very good, and it is not expensive. Please buy one.

You can't take part in the competition with an injury, and you have been disqualified.

3. It is reported that the commander has a serious situation. ......

4. You don't even understand, yours

What's more, he is still a child!

With the help of Baidu information, I feel very good and hope to be adopted! ! !