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 |
I was not _______her presence till she spoke to me.
| A．aware | B．aware about | C．aware of | D．aware to |
The reason ___ he can’t come is ______ he has to work late.
| A．because; that | B．that; that | C．why; that | D．why; because |
This kind of desk can be _______ to the height you need. Besides, it is not expensive at all.
| A．adopted | B．adjusted | C．addicted | D．adapted |
We all think it is Mr Wang as well as his parents that _______ for his son’s bad performance at school.
| A．are to blame | B．is to be blamed | C．are to be blamed | D．is to blame |
Almost all the houses in the city are said ________ in the terrible earthquake.
| A．to destroy | B．having destroyed |
| C．to have been destroyed | D．to have destroyed |