—What’s this? —It’s a machine which was invented in __________century in China.
#51455
A
six
B
sixth
C
the six
D
the sixth
推荐题目
Three _________ the students visited the museum yesterday.
#51647
A
hundreds of
B
hundred
C
hundred of
D
hundreds
How do you say 15,858 in English?
#51542
A
Fifteen thousands, eight hundred and fifty-eight
B
Fifteen thousand, eight hundreds and fifty eight.
C
Fifteen thousand, eight hundred and fifty-eight
D
Fifteen thousand and eight hundred and fifty-eight.
Computers of today can work         than the ones in the 1970s.
#51505
A
hundred of times faster
B
a hundred time faster
C
hundred times faster
D
hundreds of times faster
 The tall building has ______ floors. And Tony lives on the ______ floor.
#50954
A
twelve; twelve
B
twelfth; twelfth
C
twelfth; twelve
D
twelve; twelfth