Low-carbon lifestyle is of great benefit to improve the world environment． can be enjoyed from it until you have a deep understanding of it, however．
| A．Something | B．Nothing | C．Few | D．Much |
From her expression, we know that she didn’t understand the meaning.
| A．amazing | B．surprising | C．puzzled | D．satisfied |
—Have you finished your project, Cathy?
—Not yet. My computer .
| A．is still being fixed | B．is not fixing |
| C．has already been fixed | D．has not fixed |
Many of the students turned a deaf ear to his advice, they knew it to be valuable.
| A．as if | B．now that | C．even though | D．so that |
I really appreciate some time to surf the Internet. But I am too busy.
| A．to have | B．to having | C．have | D．having |
I failed in the final exam last tem. Only then the importance of studies.
| A．I realized | B．I had realized | C．had I realized | D．did I realized |