How do you _______it and what should you ________it?

If a web page asks for some personal information, you need to find out if the page is __________ or not.

Did Tom get back from Jack’s birthday party in time last night？— Yes. The church clock didn’t strike ten he came back home.

Hi, Tina, can I use your car for awhile this afternoon—– Sorry, _______.

n, my flight is being announced I must beoff now –Bye______________