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Question 8. In the past, Vietnamese women hadn't to stay at home doing housework.
C. stay at
Question 9. When the children were at the zoo, the lions roar loudly in their cage.
C. roar
A. In the past B. hadn't
D. doing
D. loudly
Question 10. Parents often prevent their children to play computer games.
D. games
A. children
B. at
A. Parents
B. prevent
C. to play