(2013·齐鲁名校二模)Though the suspect refused to admit that he had stolen the    precious diamond at first,  he ________ and admitted    everything when he was shown the videotape.

 —Good morning.I've got an appointment with Miss Smith in the Personnel Department.—Ah，good morning.You ________ be Mrs.Peters.(2010·北京)

I wouldn’t think it _________ to ask him to ________ the club—he’ll only refuse.

(2013·重庆部分学校高三联考)At the edge of the grass，there's a sign saying“________ the grass”．

 ______ the works of Leonardo da Vinci, the Louvre Museum has more than 6,000 other European paintings, ranging from the13th century to the 19th century.