There are six ________ people in the world.
A. billions of
B. billion of
C. billion
D. billions
His grandfather is a _________ man and his father is __________.
A. 100 years old, 70- years- old B. 100-year-old, 70-year-old
C. 100 years old, 70-year-old D. 100-year-old, 70 years old
–Well, let’s go to visit the zoo this Sunday.
--That _________ great.
A. feels
B. sounds
C. looks
D. hears
My little sister stopped_________ and played the doll.
A. to cry B. cries C. cried D. crying
My father will fly to Shanghai___________ an important meeting.
A. because B. because of C. at D. to
I have many penfriends, but ________of them are foreigners.
A. none B. no one C. nobody D. one
