0 It is has. "one" is singular; therefore, the verb must be singular. It is "one has" not "cities have".02br 00The object of a preposition (cities) does not take a verb. 0-
0 You are mistaken. 01i01font00Bangkok02font00 01font00is02font00 ...02i00 has the 01font00subject02font00 and 01font00verb02font00 of the main clause. 01i00cities02i00 is t
0I agree with CJ. 02br 02br 00 01a01font00Bangkok02font02a00 is one of the cities that 01font00has/have02font00 been facing this problem.02br 02br 00Bangkok is a city that has been facing thi