第12题: [填空题]Massaging has almost become a routine treatment to preemies —premature babies —in hospital since more and more scientists claim that massaged babies gain more weight and have improved sleep and alertness. 参考答案:NG
第21题: [单项选择]A: What happened to the priceless works of art B: ______ A. They were destroyed in the earthquake. B. The earthquake was destroying them. C. They destroyed in the earthquake. D. The earthquake destroyed them. 参考答案:A 答案解析:排除B、C两项,显然动作不是正在进行,而且应用被动语态。D项从语法上讲没有错误,但不及A项承接问语自然。