________of the chemical factories in their city _________pouring waste water into the river. It’s too dangerous.
#51213
A
Two fifths; are
B
Two fifths; is
C
Two fifth; are
D
Two fifth; is
推荐题目
It may take _________ years to make such robots .        
#51467
A
hundred of
B
two hundreds
C
hundreds of
D
hundred
The teacher said that__ of the boys would take part in the talent show.
#51850
A
three five
B
three fives
C
thirds fifths
D
three fifths
—What would you like to eat?—       , please.
#51701
A
two piece of breads
B
two breads
C
two pieces of breads
D
two pieces of bread
There are ____ stars in the sky and you can see them at night.
#51590
A
thousand of
B
two thousands
C
thousands of
D
two thousands of