Last week our maths teacher set so difficult an examination problem___ none of us worked out.A.thatB.whichC.as D.so that.Please explain.
问题描述:
Last week our maths teacher set so difficult an examination problem___ none of us worked out.
A.that
B.which
C.as
D.so that.
Please explain.
答
.......so........ as none of us worked out
.......so........ that none of us worked it out
as 引导定语从句,先行词在从句中充当成分,像。。。。那样
that 引导状语从句,如此。。。。以至于
答
A
SO.TAHT.句型