Some scientists believe that there will be more robots in       years.
#50952
A
hundreds of
B
hundred of
C
two hundreds of
D
two hundreds
推荐题目
—How many teachers are there in your school?—About two _________.
#51452
A
hundred of
B
hundreds of
C
hundreds
D
hundred
Look ! _________ students are doing morning exercises on the playground .
#51428
A
hundreds of
B
hundred of
C
hundred
D
hundreds
There are four ________ students in our school.
#51641
A
hundred
B
hundreds
C
hundreds of
D
hundred of
Our new physics teacher got a pretty and lovely girl _____   . 
#51414
A
in his thirty
B
in his thirty’s
C
in his thirtieth
D
in his thirties