Before you decide to leave your job, _____ the effect it will have on your family.

Look at the flowers I gave you last month. They are dying! ________ do you water them—Sorry, I forgot to water them.

Sam spends two hours _______ his homework every day.

I a report about the air pollution in my hometown all the morning and haven’t finished it yet.

Mr. Tang enjoys writing in his spare time. His works have ______ him many good friends.[ ]