Sam_______ some knowledge of the computer just by watching others working on it..
(届北京市顺义区高三3月统一测试 ) The aging population _____ each day .There must be some kind of interesting activity for the old.
(届北京市东城区高三3月质量调研 ) --Is your dad at home? --No, he_________ out.
(届北京市东城区高三3月质量调研 ) --Where did you get the breaking news? --It _________ in the newspapers.
(届湖南省长沙市重点中学高三第七次月考 ) Jim who is now our English teacher once ________ as a manager in an international cooperation for 5 years.
(届四川省凉山州高三第二次诊断性测试 ) Large quantities of information___since then as to how the program has worked.