1. Keep trying! Don't                (错过) a good chance.
2. There are                (至少) 200 people going to the meeting.
3. The shark mainly                 (以……为食) fish and other sea animals.
4. I often                Mary                (错把……当作) Kate. Because they are twins.
5. —What do you think of "Harry Potter"?    —I think it is just                (一般).

1. The ____ (力量) of the air will keep the water in the glass.
2. The doctor ____ (检查) him and found nothing wrong was with him. 
3. Sally is interested in ____ (科学).
4. Let me ____ (倒) you a cup of tea.
5. Can you ____ (解释) why you are late again?
6. The girl ____ (躲藏) behind the door and wants to surprise someone.
7. In spring, we can see the flowers ____ (到处) on the hill.
8. There was too cold in the room, so he ____ (点燃) a fire.
9. The candles have ____ (燃烧) for three hours.
10. The old man used a ____ (火柴) to make the candle burn

1. Sweden (瑞典) lies in the north of Europe. It is the fourth largest country in Europe with an a______
    of 450, 000 square kilometers.
2. Children are p______ for doing some housework so that they can learn how to make money for their
    own use.
3. It is very important to get e______ sleep every day to keep healthy.
4. Andy moved to China in 2005. She has found many differences b______ Chinese and Americans.
5. There was a fire in the office yesterday. L______, all the people were saved.
6. To our ______ (惊讶), the factory is still pouring waste water into the river near it.
7. The girl ______ (花费)a lot of time collecting stamps last year.
8. It is a pity that there are a lot of people who do not know the ______ (重要) of time. They spent their
    time smoking, drinking and playing.
9. Chinese parents are strict with their children and usually stop them from ______ (逗留) out too late
    with friends.
10. Do you have bright ideas for inventions that ______ (改变) the world or, at least, make life easier for
     somebody?