It is really crazy ________ Peter to let his ________ son swim alone in the river.
| A．for; 5 years old | B．of; 5 years old |
| C．for; 5-years-old | D．of; 5-year-old |
You had better ________because you have to drive back home.
| A．not drinking | B．not drink |
| C．don't drink | D．not to drink |
As we all know，it's not polite to keep others ________for a long time.
| A．wait | B．waited |
| C．to wait | D．waiting |
When I was walking past the window, I noticed Wang Fei ________my homework.I really got ________.
| A．copying；annoyed | B．copying；annoying |
| C．copy；annoyed | D．copied；annoyed |
Water Park is a good place ______.
| A．to have fun | B．have fun |
| C．having fun | D．to have a fun |
—It's a fine day today. How about ________？
—Sounds great!
| A．go hiking | B．go to hike |
| C．going hiking | D．to go to hike |