Ms. Yousafzai became the youngest winner of the Nobel Peace Prize，but people doubt whethershe can _________________ create systemic(系统性的) change at this young age.
| A．frequently | B．actually |
| C．finally | D．exactly |
I’d like to study law at university _______ my cousin prefers geography.
| A．though | B．as | C．while | D．for |
People try to avoid public transportation delays by using their own cars, and this creates further problems.
| A．in short | B．in case | C．in doubt | D．in turn |
Scientists are convinced the positive effect of laughter physical and mental health.
| A．of; at | B．by; in | C．of; on | D．on;at |
This is a junior school.You should go to a senior school _____girls of your age.
| A．for | B．about | C．from | D．to |
__ unemployment and crime are high, it can be assumed that the latter is due to the former.
| A．Before | B．Where | C．Unless | D．Until |