The swimming pool is ________.
#51768
A
50-metre long
B
50 metres long
C
long 50 metres
D
long 50-metre
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There  are _________of  nurses in our school but only _______of them are boys.
#51756
A
hundreds, three hundred.
B
hundred, three hundreds
C
hundreds, three hundreds.
D
hundred, three hundred
__________ the tourists come from South Korea.
#51465
A
Three hundred
B
Hundreds of
C
Hundred of
D
Three hundred of