The poor boy ＿＿＿＿＿ blind at the age of three.
| A．turned | B．went | C．became | D．looked |
（届浙江杭州高级中学高三第三次月考英语卷）
Modern science has given clear evidence ______ smoking can lead to many diseases.
| A．what | B．which | C．that | D．where |
（届北京中国人民大学附属中学高考冲刺英语卷）
n his lecture, the professor referred to the belief, in contrast to all other countries, _____ the elderly are wise, _____ is particularly dominant(占优势的) in the Chinese culture．
| A．that; one that | B．that; that | C．which, which | D．that; one |
（届四川成都高三摸底试卷）
The Mekong River Commission has found no evidence ______ the dams on the upper reaches have an influence on the water flow downstream．
| A．which | B．that | C．where | D．what |
（2014届黑龙江双鸭山第一中学高三第一次月考英语卷）
Don’t worry！There is still a great chance we can make up for the lost time.
| A．which | B．that | C．where | D．when |
（届甘肃省部分普通高中高三目标诊断英语卷）
_______ difficult and challenging the task may be, we must finish it on time, because there is a possibility _______our work will go down in history.
| A．Whatever; that | B．However; as |
| C．Whatever; which | D．However; that |