----- Why does Sara know so much about Angkor Wat? ----- She _________ have been there, or….
The boss promised to give reward to ________can work the problem out.
Someone who lacks staying power and perseverance is unlikely to ________a good researcher. A.make B.turn C.get D.grow
—Have you finished reading Jane Eyre? —No,I ________my homework all day yesterday.
The last one ________pays the meal.
She devoted herself ________to her research and it earned her a good reputation in her field.