单选题 Tickets must be purchased two weeks in advance.
【正确答案】 B
【答案解析】[解析] 本句意思是“必须要提前两周购票”。句中purchase意为“购买”。book当动词讲意为“预订”,You'll have to book early if you want to see that fashion show.你要想看那场时装表演的话,就得早点儿定座位。buy“购买”。sell“卖”。obtain“(通过努力)得到”,如,Further information can be obtained from our head office.详细的资料可从我们的总部得到。B项buy意思上和purchase最接近。