3. I ran into my classmate in elementary while buying something at Lee Plaza yesterday.
A. investigate
B. appear; arrive
C. meet by chance
D. postpone, delay
4. The two camps were able to iron out their problems before the day was over.
A. review
B. disappoint
C. resolve difficulties
D. make unconscious
5. I cannot get his ideas across no matter how much he explains them.
A. appear unexpectedly
B. Take responsibility for
C. record something in writing
D. communicate something understandably ​