What’s the matter, Mary? You looked upset.— I failed again in my math exam. I’m really sorry because I don’t want to ____ my parents down.

So excited ____ when he received the invitation to the party that he ____ say a word. [ ]

Why haven’t you asked her to come here?— She _______ an important experiment when I found her and she _______ it.

I sit _____ Maria _____ Jim. [ ]

_______ is the train station from the post office,do you know?[ ]