According to a recent survey, homework is ______ students most often blame for their lack of sleep．
| A．why | B．that | C．what | D．which |
—Hey, you haven't been acting like yourself. Everything OK?
—________.
| A．Sure, it is | B．I'm fine, thanks |
| C．That's good | D．It's a pleasure |
Since my childhood I have found that ________ is more attractive than reading, which is my favorite.
| A．everything | B．nothing |
| C．something | D．anything |
It makes good sense to buy a large packet because ________ will work out cheaper in the end.
| A．it | B．this |
| C．one | D．they |
It is not so difficult to learn English well. ________ you need is listening, speaking, reading and writing it every day.
| A．Everything | B．All |
| C．Each | D．Something |
—________Beijing of 2012 saw its first snowfall in the month of November.
—Oh, it came as ________ surprise to us.
| A．The; the | B．The; a |
| C．/; a | D．/; the |