About two _________boys took part in the running race. 
#51585
A
hundred
B
hundreds
C
hundreds of
D
hundred of
推荐题目
They are __________ stars in the sky at night
#51660
A
millions
B
millions of
C
some millions
D
million of
Anna is already ______ girl, but she is lazy. She wants to get her clothes ______ again. 
#51459
A
a 17-year-old, to wash
B
a 19-year-old, washes
C
an 18-year-old, washed
D
an 8-year-old, washing