Hebuiltatelescope____hecouldstudytheskiesinhisfreetime.
through which
暂无解析
Humanbeingsaresuperiortoanimals_____theycanuselanguageasatooltocommunicate.
Hehasfourson,____(他们全部都是那个偏僻山村里的高级教师)。
Hetalkedaboutthemenandbooks____interestedhimgreatlyintheschool.
He didn't know which room ____.
Human beings are superior to animals _____ they can use language as a tool tocommunicate.
