—How old is Steve?—He is ____________ and he has an ___________ sister.
#51515
A
13-year-old; 10 years old
B
13 years old; 11-year-old
C
13 years old; 10-years-old
D
13-years-old; 11-years-old
推荐题目
I think __________ should be allowed to drive.
#51761
A
sixteen year old
B
sixteen-year-olds
C
sixteen years old
D
sixteens year old
It is reported that people throw_____ plastic bags along this street every day.
#51408
A
hundred
B
hundreds
C
hundred of
D
hundreds of
We all know that dinosaurs lived on the Earth more than ______ years ago.
#51424
A
sixty million
B
millions of
C
sixty million of
D
million of
On National Day there are more than four     people in the park.
#51600
A
thousand
B
thousands
C
thousands of
D
thousand of