用所给单词的适当形式填空。 |
1. Don't spend much energy _____ (make) others happy. 2. Why do many parents keep their children from _____ (go) out after school ? 3. It's necessary _____ ( keep) our classroom tidy and clean. 4. He pretended _____ (is) friendly with me. . 5. I thanked them for their _____ ( kind) they showed me. |