问题
选择题
We all feel it is Jack as well as his wife that ________ for their son's bad performance at school.
A．are to blame
B．is to be blamed
C．are to be blamed
D．is to blame
答案
D
题目分析：句意：我们都觉得杰克和他的妻子应该对他们的儿子在校的坏的表现负责。这里是强调句型，其结构是it be+被强调部分+that…，判断强调句型的方法：把it be that去掉整个句子是成立的。被强调的是Jack as well as his wife；从句的主语是as well as前的Jack是单数，故排除AC；be to blame该受责备，是固定短语，故选D。
考点：