In my opinion, a short stay in the country for some time will be ________to her health.
It is believed that a new kind of drug ______ by the scientists and they are hopeful that they will succeed in a few months.
Jenny nearly missed the flight ________ doing too much shopping.
If you receive a bunch of roses on Valentine’s Day, do you know what hidden meaning is _______ to it?
_______ makes the people in Shanghai proud is _______ they have achieved a lot in the past ten years.
—Are you worried about her safety? —Just ________. She isn't alone.