Every time our teacher began his lesson, my mind would begin to ________, not intentionally but habitually. [ ]

Do you know the iPhone5 has come out—-Really It’s said to be superiortheiPhone4s. I can’t wait to buy.

There ______ nothing more to do, Mr Goodman left for home.[ ]

We don’t allow ______in the cinema. But youare allowed ______in the rest room.　

I wrote a letter to John for his help during my high school years，without which I ________ the college entrance exam.