________ you have learned should be made good use of ________ making mistakes in the coming college entrance exam.
| A．What; avoiding | B．That; avoiding |
| C．What; to avoid | D．That; to avoid |
Tracy Mcgrady announced his operation decision to the press without informing his club, leaving his team members ______ why he did so.
| A．to wonder | B．wondered | C．wondering | D．wonder |
A digital ring is locked on every newborn baby’s foot _______ they are taken by strangers out of the hospital.
| A．because | B．when | C．so that | D．in case |
The new Hukou(户口) policy, according to some experts, ______ to attract more high-end talents to contribute to Shanghai’s development.
| A．serves | B．serving | C．to serve | D．is served |
Even today, poverty is still a big problem in the United States, ______ more than 10 percent of the whole population.
| A．and that affect | B．affected | C．affecting | D．it affects |
Ordinary soft drinks enter human body through stomach ______ alcohol goes directly into the blood system.
| A．until | B．while | C．as | D．before |