In my opinion, some of the news _____ unbelievable.
| A．are | B．is | C．has been | D．have been |
In a tight job market, what you wear to an interview could be the difference between getting anand getting rejected.
| A．answer | B．offer | C．honor | D．effort |
—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 |