---How was your weekend? ---Great! It was my grandfather’s _________ birthday. We enjoyed ourselves.
#51413
A
seventy
B
seventieth
C
the seventieth
D
seventeenth[
推荐题目
Look!  ______ ducks are coming  here.
#51348
A
Hundred of
B
Hundreds of
C
Three hundreds
D
Three hundreds of
Do you have plenty of friends in your school? 
#51485
A
much
B
a lot
C
lots of
D
a little
--Is that Mr. Green? ---No, Mr. Green is an ___________ man. But this man is only about _________.
#51812
A
80-year-old; 18 years old
B
80-years-old;18 years old
C
80-year-old;18-year-old
D
80 years old;18-year-old