.Going to the sea _____ interesting .

I have _____ decided when to leave, but my sister hasn’t decided_____.

Dad, must I finish my homework today?——No, you . You may do it tomorrow.

The more one is _______ the English-speaking environment, the better he or she will learn the language.

I am told to get there before seven tomorrow. —Well, you ______ to catch the first early bus.