The gas tank____________ twenty gallons of gas, but now it may____________ only three gallons.
Tibet lies ________the west of China while Japan lies ________the east of China.
--Hi, Jack! We’re going to have a walk along the beach this Sunday. --_______. I love sunshine.
________ the market in three months, the new product will make a big difference.
Mary _______ have arrived ten minutes earlier but her flight was held up because of the heavy fog.
________ you have learned should be made good use of ________ making mistakes in the coming college entrance exam.