11. The exhibition is well worth _____ and you can see fancy vases of different dynasties on show there.
A. to visit B. to be visited C. being visited D. visiting
12. He took up my cellphone and made a long distance call as if the phone _____ him.
A. belonged to B. was belonging to C. was belonged to D. had been belonged to
13. I am going to the airport to meet my uncle tomorrow morning, _____ he will be back from abroad.
A. who B. when C. where D. which
