Many of them turned a deaf ear to his advice, ________ they knew it to be valuable.
-You couldn’t have chosen a better way to solve the issue, I think. -________________.
The scientists are able to ____________ accurately when the spaceship will reach the moon.
-Can I pay the bill by check? -Sorry, sir. But it is the management rule of our hotel that payment ______ be made in cash.
The driver got out of the car_______it caught fire.
__________twice a year, whether it is a car or bus or a truck, is the rule that every driver must obey in this city.