I once watched _______ one-act play, which was played by _______ 11-year-old boy.
| A．a, a | B．an, an |
| C．a, an | D．an, a |
During the holiday I bought a CD player, _____ was rather reasonable.
| A．its price | B．of which price |
| C．the prices of which | D．whose price |
James, _________ money is now no problem, has run another business in his hometown.
| A．for whose | B．for whom | C．with whom | D．with whose |
Alice was not satisfied with the apples her mother had picked for her, _______ was small and not ripe.
| A．some of them | B．some of which |
| C．one of them | D．one of which |
Whenever our friends come to see us, my parents will take them to the Shuihui Park and the Dinghui Temple, ______Rugao is famous in the country.
| A．which | B．that | C．for which | D．for that |
Witnessing the explosion(爆炸) in a chemical plant in Kunshan is the most frightening experience ______ I have ever had.
| A．that | B．when | C．which | D．who |