题目内容：

选词填空。

excite;     once or twice;       satisfy;      come out;      all the time; warn;      run;       show somebody around;     at least;      piano;

1.You can ride your bike to school, but remember to be careful ________________.

2.This magazine isn’t popular with the students though it ________________ every week.

3.It’s difficult________________ both the old and the young about the program at the same time.

4.The kids clapped and shouted ________________ when the actor appeared.

5.Though he is very busy, he goes to the movies to relax ________________.

6.The children are interested in playing the piano, so they need more ________________.

7.The visitors ________________ not to swim in this river for several times.

8.There are no students in the classroom. They ________________ on the playground.

9.Thank you for ________________ the museum. We’ve learned a lot.

10.You must do more exercise, ________________ twice a week.