How soon will you start your journey? —I’m not sure. I haven’t decided_____.

I have some problems _____ my Chinese learning. Can you help me with it?—Sure.[ ]

I want to drink ________ juice．Is there ________ juice in the fridge?

My son seldom has breakfast.— It is unhealthy habit. You must ask him to change it.

If you go by train, you can have quite comfortable journey, but make sure you takefast one.