Now most families have only one child _____ our country’s one-child policy.
Everyone in their class_________ to music.
---_______ do you go to the library?---Three times a week.
---_______ Lucy come from America?---No. She _______from America. She is English.
Of the underlined parts, which has a different pronunciation(发音)?
---Is Mary a _______ swimmer?---Yes, she swims _______.