It's not easy to change habits，________ with awareness and self－control，it is possible.
| A．for | B．or | C．but | D．so |
________ have an internal clock that controls the beating of our heart, and the ________ of our breathing.
| A．Human being; steps | B．Humans; pace |
| C．Human beings; steps | D．Man; pace |
Many companies in Guangdong are facing a serious labor ________ following the Rabbit Year’s Spring Festival.
| A．lack | B．shortage |
| C．absence | D．storage |
People all believe that ________ to free trade destroy wealth, benefiting no one in the long run.
| A．administrations | B．attempts |
| C．progress | D．barriers |
The girl got into ________ panic when she heard ________ frightening news.
| A．a; the | B．a; a |
| C．the; the | D．the; a |
—Do you know what EU stands for, Tommy?
—Sure.It stands for the European Union，________ European political and economic organization that encourages trade and friendship between ________ countries that are members.
| A．an; the | B．a; the |
| C．the; / | D．an; / |