henry has skated on the lake twice对划线部分提问

henry has skated on the lake twice对划线部分提问 john has been to the USA twice,对划线部分提问 划the USA My brother has been to the USA __twice___ 对twice 划线部分提问 San skated for four hours 对划线部分提问 1.Amy and Linda chat on the Internet twice a week.(对划线部分提问） I have seen the film twice .对划线部分提问 There are some boats on the lake 对划线部分提问 （some）划线了 _ _ _ _ _ i have cleaned the door twice（对画线部分提问 划线部分：twice) Zoom and Zip swim in the lake（划线部分为in the lake）对划线部分提问 Kay has to go to see the dentist on Monday.(对划线部分提问）划线部分是go My english teacher has been to( london )twice.对划线部分提问 He usually has the big party at home on his birthday对划线部分提问a