【单项选择题】
He didn't live up to()had been expected of him.
A、A.what
B、B.which
C、C.that
D、D.all
A、A.what
B、B.which
C、C.that
D、D.all
A、A. There‘s no problem. B、B. It‘s a pleasure. C、C.That‘s quite all right. D、D.I didn‘t realize that.