—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
There are _____ months in a year._____ month is December.
#51383
A
twelve;Twelfth
B
twelfth;The twelfth
C
twelve;The twelfth
D
twelfth;Twelfth
There are ______days in a year.
#51754
A
three hundreds and sixty-five
B
three hundred and sixty five
C
three hundred and sixty-five
D
three hundreds and sixty five
About _______ of the books in our school library are written in Chinese.
#51572
A
four-fifth
B
four-fifths
C
fourth-fifths
D
fourths-fifth