When a spacecraft travels, one of the major problems is reentry into the Earth ’s _______.
A、surfaceB
暂无解析
Allthememoriesofhischildhoodhad_______fromhismindbythetimehewas65.
Muchofthenewsprovidedbythisnewspaperis_______,notforeign.
Whenaspacecrafttravels,oneofthemajorproblemsisreentryintotheEarth’s_______.
Bothsugarandsaltcan______inwater.
Sometimesitisverydifficultto_______someoftheEnglishwords.Eventhenativespeakercannothelp.
