where在此引导定语从句,修饰先行词cases,where的意思相当于in which
in the case ,in the situation在.情况下
如:We will discuss a number of cases ( ) beginners of English fail to use the language preperly.
A.which B.as C.why D.where
2.He was driving so fast as to get himself into a dangerous situation ( )he is likely to lose the control over his car.
A.which B.as C.why D.where
都用where