根据句意及所给中文提示、首字母或英文解释，写出句中所缺单词。 1. The sun gives us not only light but also __________ (热). 2. Susan said she __________ (喜欢) water to milk in the past. 3. You can read the __________(最新的) information about Dolly, the first cloned (克隆的) sheep in this magazine. 4. They can improve the service of their restaurant by __________ (训练) their waiters and waitresses. 5. Could you tell me how to __________(be successful at something) a balance between my homework and my hobbies? 6. The girl stayed up late last night, so she felt __________ (in need of sleep) in class today. 7. The girl's c__________ and beauty attracted the director's attention.