You drink too much. I think you're hooked on alcohol.
你喝得太多了。你是不是喝酒上瘾了?
The missile is in pursuit of the jet.
导弹追赶着喷气机。
I'm not sure. I ought to do some studying, as I've got masses of work to do, but I think I'll be too tired. Maybe I'll just watch the news on television and go to bed early.