______是属于按上层建筑型式分类的船舶
A、远洋船，沿海船D
暂无解析
I’dliketohavealongholiday,butI’mreallytoobusyto_____thetime.
Itisnecessarythatthestudents____moreexcercisestodo.
Wecanhear（）fromthebackoftheroom.
John'sscoreonthetestisthehighestintheclass;he____lastnight.
Nowhereinnatureisaluminumfoundfree,owingtoitsalways____withotherelements,mostcommonlywithoxygen.
