________what we can do, we’ll have to decrease our dependence on oil and reduce our overall energy consumption.[]

___________he is speaking! I can’t follow him.

“ John wants to see you today”. — “ I’d rather he ______ tomorrow than today”.

He went to America to improve his English _________ to make money, according to his parents.

Studies indicate that people are more _______ to suffer from back problems if they sit before computer screens for long hours.