The old house is regarded as a part of local history, so it should be ______.
Hearing the news, she ______.
I keep medicine on the top shelf, out of the children’s ______.
The work calls for great care and patience, so you ______ to do it.
______ he is doing an operation on a patient; please don’t disturb him.
There has to ______ a well-developed system that can give people a warning when a tsunami is ______ the way.