English questions!!!!!!help

唔須要快!!! 但係一定要8題全岩!!英文高人請閱 THX!!!!感激不盡!!!!!
1. Dr. Wong has an excellent reputation (______) a heart specialist.
A. to B. as C. be D. in 2. In order to meet the deadline for submitting the final design of the art work, we need to be more (______)
A. effect B. efficiency C. efficient D. sufficient 3. The BBC World Service (______) throughout the world.
A. receives B. broadcasts C. outcasts D. censors 4. From the helicopter the police had a bird’s eye (______) of the accident.
A. from the view B. view C. to view D. viewed 5. There are (______) classes and activities offered during the summer by the government.
A. various B. variety C. variation D. vary 6. You are (______) from tax if you are a student.
A. obliged B. liable C. exempt D. optional 7. The (______) of the hard drive is 500GB.
A. capacity B. capable C. loading D. ability 8. Many of the problems were caused by a (______) in communications.
A. outset B. breakdown C. feedback D. outbreak