A 19-year-old teenager from Guangdong nicknamed Niko demanded an apology from Youku, which he believed violated their copyrights as it used his team's photos without ______.
| A．commitment | B．approval |
| C．recognition | D．reservation |
A great many students have dropped out of school and now the number of our class has____51.
| A．increased to | B．increased by | C．reduced by | D．reduced to |
The person____drugs had much difficulty in getting rid of the_____.
| A．addicted; addict | B．addicted to; addiction |
| C．addictive to; addict | D．addictive; addiction |
Years later, I began ______ what he told me right.
| A．knowing | B．to know |
| C．recognize | D．to recognize |
It’s no use ______ with him ______ this matter.
| A．arguing; for | B．arguing; over |
| C．to argue; over | D．to argue; about |
______ the distance was too long and the time was short, we decided to fly there instead.
| A．Discovering | B．To discover |
| C．To have discovered | D．Discovered |