Chest pains can be a warning ____of heart problems.
---- Were all the passengers on the bus injured in the accident sent to hospital? ---- No, _____ only the four who got hurt seriously.
The elderly need special care in winter, as they are_____ to the sudden change of weather.
----I’ve looked everywhere, but I haven’t found any black ink.----Then, I’m afraid there is ________left.
—What do you think of "Supergirl", the reality TV show? — I can't help _____ it. I got _____ whenever I watched it!
There is no doubt _____ 100 years ago animal testing was cruel but todayanimals in experiments are very well taken care of.