Don’t call me up at this time tomorrow, for I _______ an important test.
—Why do you look so worried? —My computer broke down last week and my essay has been left________since.
Some parents are just too protective.They want to________their kids from every kind of danger,real or imagined.
He had lost his temper and his health in the war and never found________of them again.
The space suits can be adjusted so that the team can reproduce different levels of gravity as if they________in space.
The rescue team has saved more than ten people________under the collapsed buildings since the earthquake occurred in Ya’an.