--I think students should have mobile phones to call their parents.--______. They often use them to play games instead.
—Another cup of coffee? —No, thanks. I ________ be off. My friend is waiting for me at the school gate.
—Mike, it is the ________ time in ______ days that you’ve made the same mistake. —Sorry, sir. I’ll be more careful next time.
The restaurant is very popular in the city because it has ___________delicious food __________ good service.
Last night, the wind blew so _____________ that some roofs were blown away.
—What’s the low-carbon life style like? —Save __________ energy, produce __________ carbon.