4.She owes her wealth_____hard work and good luck.
| A．for | B．on | C．to | D．at |
New traffic rules that took effect on January l, 2013 are much stricter than ________ in the past．
| A．that | B．this | C．those | D．What |
With alcohol and drugs _______ out of their life, the post-1990s young people now tend to develop healthier hobbies.
| A．kicked | B．to kick |
| C．having kicked | D．Kick |
The speaker mentioned many examples people lived through hard times and succeeded at last．
| A．which | B．whose | C．when | D．Where |
the instructions on the packet when you take the drug and the drug, I think, will work soon.
| A．Follow | B．To follow | C．Following | D．Followed |
A completely new situation will ______ when the examination system comes into existence.
| A．rise | B．arise | C．arouse | D．Raise |