All the citizens here strongly insist those found________ “harmful” advertisement in the streets ________ punished strictly.

His wife ________him to stop smoking, but he didn’t listen.

I can sing the song, but he ____.

great relief, Jack’s illness proved notto be as serious as we ___.

The research on the new flu virus vaccine ischallenging and demanding. Who do you think can do the job—____ my students have a try