未知题型 He read the paper several times but be still _______ some printer‘s errors. A.overlooked B.ignored C.noticed D.outlined

未知题型 We _______ that it will take another four months to finish this plan. A.grant B.estimate C.council D.check

未知题型 If you ask why I plan to study in the United States， the only answer is that it is a _______ for me . A.chapter B.ceremony C.chamber D challenge