单项选择题

Scientific research indicates that two-thirds of the earth surface _____ with water.

A．covered
B．are covered
C．covers
D．is covered
<上一题 目录 下一题>
热门 试题

单项选择题
The Mona Lisa, _____ in Italy, is now kept in Louvre, a museum in Paris.
A．who painted
B．who was painted
C．that was painted
D．which was painted
单项选择题
_____ for your assistance, I wouldn’t be able to do so well.
A．If it isn’t
B．Weren’t it
C．If it wasn’t
D．Wasn’t it
相关试题