David lives on the ________ floor. It is too high, so he has to take a lift every day.
#50897
A
fourty
B
fourtieth
C
forty
D
fortieth
推荐题目
There are nine______ students at Green High School. Five _____ of them walk to school.
#51580
A
hundred, hundred
B
hundreds, hundreds
C
hundreds of, hundred
D
hundred of, hundreds
About two _________boys took part in the running race. 
#51585
A
hundred
B
hundreds
C
hundreds of
D
hundred of
–How often do you wash your hair? 
#51813
A
One day
B
Twice
C
Twice a week
D
Two times a day
Mary, how old are you this gear?_______.  And My parents just had a party for my ______birthday last monty. 
#51569
A
Fifteen, fifteenth
B
Fiveteen, fiveteenth
C
Fifteenth, fifteen
D
Fiveteerth, fiveteen