I'm 13 years old and my sister is 15 years old. So my sister is
#51712
A
one
B
two
C
three
D
four
推荐题目
A lot of trees and flowers are on ______ of the river and the number of them is growing ______. 
#51652
A
both side, greater
B
each sides, more
C
both sides, larger
D
each side, more
—When do you usually get up?—____________________.
#51514
A
At fifty past six
B
At half to seven
C
At a quarter to seven
D
On a quarter past six
________ people died in the war.
#51856
A
Two thousands
B
Thousands of
C
Two thousands of
D
Two thousand of
It is reported that people throw_____ plastic bags along this street every day.
#51408
A
hundred
B
hundreds
C
hundred of
D
hundreds of
Our school has a big library. There are about ten        books in it.
#51557
A
thousand
B
thousands
C
thousand of
D
thousands of