1. December is the ________ (twelve) month of a year. 2. As we all know, the silk dress feels ________ (soft). 3. She said to the twins, "Help ________ (you) to some fruit." 4. You should do your homework as ________ (careful) as your sister. 5. The foreign teacher gave us some ________ (advice) on how to learn English. 6. _______ (teach) high school students in a poor mountain village may not sound like fun to you.