.(天津卷15). ---- John went to the hospital alone.---- If he _______ me about it, I would have gone with him.
One should remain ______ and think of ways to escape when facing danger.
Every minute should be made use of_______ for the coming exam.
We all like the park _______ we visited last week.
He said that his car ______ stolen and he _______ have to telephone the police.
Those who have ______ floods and sandstorms know the importance of environmental protection.