Question

—How many times _____ he _____ NanChong?  —Twice.     
A. has, gone to     B. has, bee to       C. has ,been in

Answer 1

B

have gone to去了某地還沒回來，have been to 去過某地回來了，句意：你去過南充幾次了，兩次。根據(jù)語境去了又回來了，故選B。