Manykindsofanimalsarebelievedtohave_________fromtheearth
A、withdrawnWhenaspacecrafttravels,oneofthemajorproblemsisreentryintotheEarth’s_______.
Carelessnessmadehimfallinhisjob_______.
Heworksinouruniversityasavisiting_______,notasaformalfacultymember.
The_______isnearlydead,soIcannotstartthecaragain.
Muchofthenewsprovidedbythisnewspaperis_______,notforeign.
