设
Abeamoflightwillnotbendroundcornersunless________(make)todosowiththehelpofareflectingdevice
________withthesizeofthewholeearth,thehighestmountainsdonotseemhighatall.
Thedirectorrecommendedthatshe________(study)moreEnglishbeforegoingabroad.
在社会主义改造的过程中对农民不采取剥夺办法的原因是___________。
