Whenaspacecrafttravels,oneofthemajorproblemsisreentryintotheEarth’s_______.
Thismorningintheclass,ourteacherlosthis______atlastbecausehecouldnotstandanymore.
Whenyoufillintheapplicationform,pleaseuseyour_______addresssothatwecancontactyoueasilylater.
Inordertoincreaseouroutput,weneedtoimportmoreproduction_______.
He_______tostudyharderinthefuturesothathecouldhavemoreopportunitiestofindabetterjob.