By serving others,a person focuses on someone other than himself or herself,______ can be very eyeopening and rewarding.
--Why has he been staying at home these days? --He ___________ since a month ago.
The president of the country was _____well of when he was in power.
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.