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It is said that the gravity on Mars is only about          of the gravity on earth.
#51511
A
three-eighths
B
third-eighth
C
third-eighths
D
third-eight
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__________ trees are yellow in autumn.               
#51910
A
The number
B
A number
C
A number of
D
The number of
 Look! There are           people in the supermarket.
#50948
A
two thousands of
B
thousand of
C
two thousand of
D
thousands of
Their school has more than two _____ teachers and _____ students.
#51538
A
hundreds of, thousands of
B
hundred, thousands of
C
hundred of, thousand
D
hundreds, thousands of
 -A ruler is 2 dollars and a pen is 5 dollars. How much are they? -They are               
#51155
A
$22
B
$3
C
$7
D
$5
 ____________of the news reports _________written in English on the Internet.
#51111
A
Two thirds, are
B
Two-thirds, is
C
Two third, are
D
Second thirds, is