Scientists think that there has been life on Earth for _______ years.
#51626
A
illions
B
millions of
C
illion of
D
illion
推荐题目
—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
--It’s said that __________ people died from car accidents in 2011. --How terrible!
#51646
A
10 thousands
B
thousand of
C
10 thousands of
D
thousands of
---- Each year __________ fishes are killed by the polluted water and many people are made sick by the polluted air .----So we should do something to stop it .
#51462
A
millions of
B
million of
C
two millions of
D
two millions
–Good news. We will have a ______ holiday.--I’ve heard of it. But it’s coming in_______.
#50892
A
three days, here days’ time
B
three days’, three days’
C
three-day, three days
D
three days, three-day time
There are ______visitors in Hangzhou every year.
#51629
A
million of
B
millions of
C
million
D
milliones of