.--- Excuse me. Is this the right way to the Summer Palace? --- Sorry, I am not sure, but it _____ be .
—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.