句型转换。
小题1:The 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.?
小题2:Mom felt tired after she cooked for the whole family.（改为简单句）
Mom felt tired after ___________ for the whole family.
小题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.
小题4:Lisa didn’t hang out with her friends yesterday. （改为肯定句）
Lisa ___________ out with her friends yesterday.
小题5:Some 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.
小题1:many times
小题2:cooking
小题3:got married
小题4:hung
小题5:being interviewed
小题1:根据划线部分内容，可知是对次数进行提问，故疑问词用how many times，结合语境可知填many times。
小题2:本句中after是介词，后面接名词或者动名词作宾语，结合语境可知填动名词cooking做饭，做介词宾语。
小题3:结合语境可知本句描述的是过去某时发生的动作，故用一般过去时态。结合语境可知填got married结婚。
小题4:结合语境可知本句描述的是过去发生的动作，故谓语动词用过去式，故填hang的过去式动词hung，悬挂，游荡。
小题5:结合语境可知本句描述的是过去某时正在进行的动作，故be动词用过去进行时态。填：being interviewed正在接受采访。