The Great Wall is ______ tourists attraction that millions of people pour in every year.
| A．so a well known | B．such a well known |
| C．a so well known | D．such well known a |
—Sorry，Mum, I lost my key to the bicycle again．
—Oh! How you be so careless! You have to learn to look after your belongings．
| A．can | B．may | C．must | D．dare |
In the last six to nine months，teens in the US to text messaging in numbers twice that in Europe and Asia．
| A．took | B．have taken | C．had taken | D．would take |
As time went on, new customs went into Christmas，and was the Christmas tree，which was started in Germany．
| A．it | B．this | C．that | D．one |
Some researchers believe that many patterns of nature are rules of their own and not affected by natural selection．
| A．making | B．breaking | C．following | D．bending |
—Can I look at the menu for a few seconds before I decide?
—Of course．，sir．
| A．Take your time | B．It doesn’t matter |
| C．Enjoy yourself | D．Help yourself |