—Are you free after school?—Sorry. I’ve planned to treat a friend of mine to dinner _______for his help.
All the citizens here strongly insist those found ________ “harmful” advertisement in the streets ________ punished strictly.
Scientists are convinced ________ the positive effect of laughter ________ physical and mental health.
--May I speak to your manager at four o’clock this afternoon? --I’m sorry. He ________ to a conference long before then.
--Do you need any help, Lucy? --Yes. The job is ________ I could do myself.
To fully understand the writer, we must read not only between the lines but also ________ the lines to know what is implied in the article.