The fact that so many people still smoke in public place ___that we may need nationwide campaign to raise awareness of the risks of smoking.
Tell your friend not to take the pills _______ he may have health problems in the future, _______ it is too late.
Actually,I don't mind_______by a young doctor.
She went to the USA and _______ ever since.
It's not your fault, so you needn't be _______of yourself.
The box _______ your English learning materials is on the desk next to Mr Li's.