1.______obey the school rules,but also they should study hard. A.Not only all students must B.Not only must all students C.Must not only all students D.Must all students not only2.Only in the past fifty years or so,_...1.______obey the school rules,but also they should study hard. A.Not only all students must B.Not only must all students C.Must not only all students D.Must all students not only2.Only in the past fifty years or so,____“see”farther and farther into the sky. A.scientists have been able to B.scientists were able to C.could展开更多
文摘1.______obey the school rules,but also they should study hard. A.Not only all students must B.Not only must all students C.Must not only all students D.Must all students not only2.Only in the past fifty years or so,____“see”farther and farther into the sky. A.scientists have been able to B.scientists were able to C.could