句型转换。
1The boy has been to the U.S.A. twice.(对画线部分提问)
How ___________ ___________ has the boy been to the U.S.A.?
2 Mom felt tired after she cooked for the whole family.(改为简单句)
Mom felt tired after ___________ for the whole family.
3 Mr. Brown and his wife have been married for 20 years. (改为同义句)
Mr. Brown and his wife ___________ ___________ 20 years ago.
4 Lisa didn’t hang out with her friends yesterday. (改为肯定句)
Lisa ___________ out with her friends yesterday.
5Some reporters are interviewing a government official on traffic problems now.(改为被动语态)
A government official is _________ _________ by some reporters on traffic problems now.
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