【推荐1】You must be careful to c________ the road.

【推荐1】Drums are________（基础的） to African music.   People there play them often.

【推荐2】单词拼写单词的首字母写出所缺单词。（每空限填一词）
1. Jim is very rich and can a______this expensive car.
2. We can’t count the a______of sand clearly.
3. It’s important to stay p______and look on the bright side of life.
4. Last month, Susan i______her vacabulary a lot by reading English novels.
5. We cannot be successful u______we work very hard.
6. Ted loves all sports, e______swimming.

【推荐3】It’s ________ (方便的) to take the underground train to most places.