3. The impostor eluded detection for so long because she conducted herself as though she were a licensed practitioner.

　　A. as though she were a licensed practitioner.

　　B. as though she was a licensed practitioner.

　　C. like she was a licensed practitioner.

　　D. like as if she was a licensed practitioner.

　　E. as if she was a practitioner with a license.

　　4. Being abandoned by our friends is the cause of great sorrow for us.

　　A. Being abandoned by our friends is the cause of great sorrow for us.

　　B. Our being abandoned by our friends is the cause of great sorrow.

　　C. Being abandoned by our friends, we feel great sorrow.

　　D. Abandoned by our friends, sorrow is the result.

　　E. We feel great sorrow when our friends abandon us.

　　5. Among the many reasons for his defeat in the election was his arrogant assumption that his constituents were incapable of understanding economic conditions, and his unwarranted attack on his chief opponent.sat

　　A. was his arrogant assumption that his constituents were incapable of understanding economic conditions

　　B. were his arrogant assumption that his constituents were incapable of understanding economic conditions

　　C. were his arrogant assumptions that his constituents were incapable of understanding economical conditions

　　D. were his arrogant assumption that his constituents would be incapable of understanding economics

　　E. was the arrogant assumption that his constituents was incapable of understanding economic conditions