Waiting in the queue for two hours would be too

According to the professor, what are the two tasks that would most likely be included in t

Too much air in the furnace of an oil－fired boiler would be indicated by _____.A.yellowish

For the seller, the best terms would be full payment in cash at the time of sale.（)

You ______ be too careful when you drive a car in the rush hour.A．might notB．must notC．can

The car owner would be paid______per hour for labor.A．$50.B．$75.C．$125.D．$100.

ATo wait in the queue Bfor half an hour, the old man suddenly Crealized that he Dhad left