Itisnot---_______formetoreturnallthebookstothelibrarynowbecauseIstillneedsomeofthemformyresearch.
A、continuousSomelazymenwouldrather_______thanwork.
ProfessorSmithisalsothe_______oftheinternationalprogramoffice.Ifyouhaveanyproblemwhenyoustudyhere,youmaygotohimforhelp.
Whenaspacecrafttravels,oneofthemajorproblemsisreentryintotheEarth’s_______.
Whenyoufillintheapplicationform,pleaseuseyour_______addresssothatwecancontactyoueasilylater.
Withthehelpofthegovernment,alargenumberofpeople---_______afterthefloodin1991.