赞题库-背景图
单项选择题

She______ a book when the doorbell rang.

A． reads
B． has read
C． was reading
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热门试题

单项选择题— ______is the nearest post office

A． What
B． How
C． Where

单项选择题— I sleep late on weekends. — So______ I.

A． am
B． do
C． have