【推荐1】The fact is that a balanced diet can keep us    1    (energy). (所给词的正确形式填空)

【推荐2】The company is also _________ (energy) marketing its new products to foreign markets. (所给词的适当形式填空)

【推荐3】To keep_____________(energy), he sets aside two hours a day to take exercise. (所给词的适当形式填空)

【推荐1】People certainly have a variety of reasons for going back to school but one important thing to know is, no knowledge is ________ (use). (所给词的适当形式填空)

【推荐2】单句填空
1. Our foreign teacher Michael ______（map） out a plan of his bicycle trip already.
2. Nice to meet you, Tom. Did you have a good ______（fly）?
3. Look up the______（mean） of the word in the dictionary.
4. ______ （fortune），Chaplin and his friend didn’t find any gold but were caught in a snowstorm.
5. ______（careless） will be a disaster not only to ourselves but also to patients.
6. ______（surprise）, he should lose his temper in public.
7. The fish is a bit ______（smell）. We can’t eat it.
8. It is ______（legal） to drive after drinking alcohol in our country.
9. You should use your ______（imagine） to think what it might be like on the moon.
10. When he is low, I often ______（courage） him.

【推荐3】The Internet is the biggest source of information in the world, which is ________ (access) through a computer.