Question

We don’t know who ____ for the murder, but the policemen will tell us the truth soon.

A．is to blame	B．is to be blamed
C．is blaming	D．is to be blaming

Answer 1

C

考查固定搭配。sb.be to blame 表示某人应该受到责备。
句意：我们不知道谁为这次谋杀负责，但是警察很快会告诉我们事实的。