people come to visit the Great Wall every year.
#51612
A
Million of
B
Millions of
C
Million
D
Millions
推荐题目
About _______of the engineers in my company seem to be in their _________.
#51108
A
second-nines; fourties
B
two-ninths; forties
C
second-ninths; fortieth
D
two-nineths; fourtieth
 There are _____ desks in his classroom..
#51634
A
forty-fifth
B
fourty
C
forty-five
D
forty five
 It took _________ people _________ the work. 
#51447
A
hundreds of, finishing
B
hundred of, to finish
C
hundreds of, to finish
D
hundred of, finishing