There is no easy walk to __________ freedom anywhere，and many of us will have to pass through __________ valley of the shadow of death again and again before we reach the mountaintop of our desires．
| A．/；the | B．the；the | C．/：／ | D．the；／ |
The virus Ebola is reported ______ over 3,000 lives in 5 countries of West Africa by now.
| A．taking | B．having taken |
| C．to take | D．to have taken |
Teenage is an especially important stage for us, ______we are supposed to go all out to improve ourselves because anything can happen.
| A．what | B．where | C．which | D．that |
Just as Oprah Winfrey puts it, ______ thankful for what you have and you'll end up having more.
| A．be | B．being | C．to be | D．having been |
At the end of the game, players traditionally ______ their shirts with each other.
| A．substitute | B．iron | C．swap | D．transform |
It is generally believed that communication skills are becoming ______ it takes to be a good doctor.
| A．whether | B．that | C．how | D．what |