—Excuse me. Where is Mr Green’s office?—It’s on ______ floor.
#51893
A
seven
B
the seven
C
seventh
D
the seventh
推荐题目
The swimming pool is ________.
#51768
A
50-metre long
B
50 metres long
C
long 50 metres
D
long 50-metre
Nowadays            of business letters are written in English.? 
#51708
A
two-third
B
two-thirds
C
two-three
D
two-threes
_________ should not be allowed to go out at night. 
#51907
A
Twelve-years-old
B
Twelve-year-olds
C
Twelveyearold
D
Twelveyearsolds