5.All their attempts to ________ the child from the burning building were in vain.

For more information about the job employment ad，please________our website on the Internet at wwwstategov or telephone 619－5886

Thank you for your help. If you___________us, I think we_________doing it now.[ ]

There are some health problems that, when ______ in time, can become bigger ones later on.

If you want better public services, you’ll have to pay ______ tax. [ ]