题目内容：

 

1. It is worthwhile taking the trouble to help to keep babies clean, healthy and f_____ from sickness.

2 In the past few years, Mr. Collins has e_______ his small business into a big company.

3. Thanks to a sense of h______, she is very popular with her new classmates.

4. It rained; t________ the football match was put off.

5. Drivers are warned to slow down when a_______ the crossroads.