For some time the expert __________ people of the health risks caused by passive smoking. He says he won’t stop until all the smokers around him decide to quit smoking.
When you go outing with the children, you must see to ______that they are safe.
The lazy boy _____there doing nothing all the afternoon, but he______ to his boss that he had finished what should be done.
—Excuse me, can I use your dictionary? I forgot to bring mine here.—___________
-----Mr. Smith, can I come to ask for some advice on my paper at any time? -----Yes, of course. .
Being asked if he could come to the party that night, .