Itisnot---_______formetoreturnallthebookstothelibrarynowbecauseIstillneedsomeofthemformyresearch.
A、continuousThismorningintheclass,ourteacherlosthis______atlastbecausehecouldnotstandanymore.
Withthe_______ofMary,allthegirlstudentsareeagertogototheparty.
Whenaspacecrafttravels,oneofthemajorproblemsisreentryintotheEarth’s_______.
SomestatesintheUnitedStates_______peopletocarryguns.
Thisriverissobigthatitisimpossibletobuilda_______underitwithoutmoderntechnology.
