— I worked till 4:00 a.m. to prepare a report for my boss.—________ you look very tired.
Tony is not as clever as Lucy, but he works ______ than her.
—Why are you excited today? —We have been told ______ a picnic this weekend.
_______ great picture! Who painted it?
When you ______ at a restaurant, please order just enough food.
Mr Lin, a famous writer, _______ our school last week.