twice a year, whether it is a car ,a bus or a truck, is the rule that every driver must obey in this city.
We decided to ______ a chance on the weather and have the party outdoors.
The thief had himself _____ by the police when he was trying to break into the hotel.
The reason was _____ I was busy with my work at that time.
The problem is _____ will go.
He misunderstood _____ I said.