问题补充:
— No one can answer the question we can complete the task in time, do you know?
— Yes, and this is because we don’t know the way the scientist used last time.
A. whether; which
B. if; which
C. whether; in which
D. if; in which
答案:
(答案→)A. whether; which
B. if; which
C. whether; in which
D. if; in which
解析:第一空考查同位语从句,说明the question的内容,用whether引导,不能用if,第二空是定语从句,the way做先行词,但定语从句中缺少宾语,用which引导定语从句。选A。