—How long does Kitty spend on her homework?—________.
#51621
A
Half an hour
B
A half hour
C
Half hours
D
An half hour
推荐题目
The rich man gave away 5 _____ his money to charity to help the poor children in Africa.
#51594
A
millions
B
million
C
millions of
D
million of
It is said that the gravity on Mars is only about __________ of the gravity on earth．
#50894
A
three-eighths
B
third-eighth
C
three-eighth
D
third-eighth
Only ________ of the students come to school by bus.
#51345
A
three fifth
B
third fifths
C
three fifths
D
third fifth
-- Which floor does John live on? -- He lives on the __________floor of the building.
#51703
A
five
B
fifth
C
fifteen
D
fifty