______ twice a year,whether it is a car or a truck,is the rule that every driver must obey in this city.
It is beyond my understanding that many adults ______ be so crazy about HarryPotter series.
---What bad luck! I had a cut in salary yesterday.--- _____. I warned you not to be late repeatedly but you ignored it.
Hey, look at your pale face; you must have stayed up late last night, _____?
Hurry up! We need to get to the top of the mountain before the sun ____ in thewest.
The hard part in our life is not making the decision but living with .