Many difficulties have ______ as a result of the overuse of coal

Mr. White ________ at 8:30 for the meeting, but he didn’t show up.

The children were ______ for the accident. After all they were so young.

Nobody noticed he entered the room because the lights _________________ burst.

Thanks for your invitation, but I’m so sorry I can’tgo. I need to ________ my baby at home.