—Hey, if you can't enjoy that at a sensible volume, please use the earphone. I'm studying.—Oh, I'm sorry. I_______ _realize it________ you.
They suggested not only___________ to the party but also give a performance.
The gas tank____________ twenty gallons of gas, but now it may____________ only three gallons.
--The two pairs of shoes are __________ the same colour. --But they are different __________ colour.
Mr. Smith__________ the roll of film as soon as he arrived home
The shop manager always says to his assistants, "We can never be customers.