Although their parents work in faraway cities to make money, those stay-home children(留守儿童) can ______ themselves

Jack could have avoided that terrible car accident, but he ________ careful enough

periment turned out to be a completefailure, _____ wasn’t _____ they expected

What are your______ in your school —Well ,we have to wear school uniforms every day

He likes playing ____violin but dislikes playing _____ football.