One of the National Health Regulations is that public schools ______ actively create conditions for sports facilities opened to the public.
If we can___our present difficulties,then everything should be all right.
People try to avoid public transportation delays by using their own cars,and this___creates further problems.
She devoted herself___to her research and it earned her a good reputation in her field.
If the firms failed to make enough money,they would______.
Emergency line operators must always___calm and make sure that they get all the information they need to send help.