be to blame造句

Neither the players nor the coach ____ ( be ) to blame for the defeat.
答案是is,为什么,什么意思.

Some researchers have speculated that high - heeled shoes may be to blame.
有研究者推测高跟鞋可能是罪魁祸首.

He can't be to blame.
他不能受责备.

• #be to blame