单项选择题

（） of the earth’s surface is covered with water.

A．Two-third
B．Second-thirds
C．Second-third
D．Two-thirds

相关考题

Thenewlypublishedbookisreallygood.Iwouldnot（）forasecond...

单项选择题The newly published book is really good. I would not （） for a second to recommend it to my classmates.

A．determine
B．discuss
C．hesitate
D．consider

—— Mary, thanks very much for your help. —— （）. Have a...

单项选择题

—— Mary, thanks very much for your help.
—— （）. Have a good day.

A．It’s OK
B．It’s my pleasure
C．Nothing particular
D．No problem

Theownerofthestore（）hisfloorwhenIwalkedin.A．is sweeping...

单项选择题The owner of the store （） his floor when I walked in.

A．is sweeping
B．sweeps
C．was sweeping
D．swept