1. The children were __________ because they didn't get Christmas presents. (happy)
2. You must always hide __________ from children. (medical)
3. December is the __________ month of the year. (twelve)
4. The doctor's __________ made all of them sad.(dead)
5. I think this dictionary is __________ for your study. (help)
6. Which river is the second __________ river in the world? (long)
7. It is a __________ for me to stay with you. (please)
8. They don't know why you talked to them so __________. (angry)
9. Someday you'll find a foreign language a bridge to a lot of __________. (know)
10. Who is the book __________ (write) by?

1. The children were ________ because they didn't get Christmas presents. (happy)
2. How can you make yourself ________ if you cannot express yourself clearly? (understand)
3. December is the _______ month of the year. (twelve) 
4. The doctor's ________ made all of them sad. (dead)
5. I think this dictionary is ________ for your study. (help)

1. The children were ________ because they didn't get Christmas presents. (happy) 　　
2. How can you make yourself ________ if you cannot express yourself clearly. (understand) 　　
3. December is the ________ month of the year. (twelve) 　　
4. The doctor's ________ made all of them sad. (dead) 　　
5. I think this dictionary is ________ for your study. (help) 　　
6. After a day's walk, she felt so tired that she couldn't go ________. (far) 　
7. Which river is the second ________ river in the world? (long) 　　
8. It is a ________ for me to stay with you. (please) 　　
9. They don't know why you talked to them so ________. (angry) 　　
10. Someday you'll find a foreign language a bridge to a lot of ________. (know)