How many books does the little boy have—He has books.

Does he often ask you for help—Oh，no，only________.

Can you explain ____ you have been late for school several times this term?— Sorry, but it is the first time that I have been late this week.

Can I use the telephone on the table, sir?一 Under no circumstances ____to use the telephone in the office for personal affairs.

Young people shouldn’t always changetheir jobs.　　—–_____________. Young people should seek for more challenges.