—A ruler is 2 dollars and a pen is 3 dollars. How much are they? —They are ________. 
#51074
A
$2
B
$3
C
$4
D
$5
推荐题目
 ___________ should not be allowed to go out at night.
#51486
A
Twelve-years -old
B
Twelve-year-olds
C
Twelve years old
D
Twelve year olds
—What’s the time by your watch?—It’s ________.
#51439
A
half to three
B
a quarter to five
C
forty past two
D
six clock
How do you say the number 567,043?
#51556
A
five hundred sixty-seven thousand forty-three
B
five hundred sixty-seven thousand and forty-three
C
five hundred and sixty-seven thousand forty-three
D
five hundred and sixty-seven thousand and forty-three
There are   floors in my house and my bedroom is on the______floor.
#51500
A
three; two
B
three; second
C
two; third
D
second; three