【2015·安徽】— Can you come to a party on Saturday, Peter?— Oh, ______I'm already going out, I'm afraid.
I’m sure you ___ the exams; but what will you do if you ___ them?
If you want to buy ___ , you will still go to store.
My grandmother used ___ an English teacher.
Miss Liu will teach ___ English nest month.
—Where can I see Tom? —I don’ know where he is. He hasn’t arrived ___ .