用所给词的适当形式填空。
1. Mr. Green has got three ______(grandchild) and he loves them.
2. Today, we are going to learn the ______(two) lesson.
3. ______(send) me an email when you find the book.
4. Let's ______(download) this free (免费的) game at once.
5. My mother is an English teacher. She often gets ______(information) for her lessons from the Internet.