问题
选择题
Was it ______ his daughter with her work _____ the man spent the whole evening at home?
A．to help, that
B．help, when
C．helping, that
D．helped, which
答案
答案：C
考查强调句型。It is...that是强调句型，有一般疑问和特殊疑问句形式，可以强调除谓语外的任何成分。句意“正是帮助他的女儿做作业，那个人才在家了一晚上吗？”spend time doing sth.“花时间做某事”。故选C。