问题
选择题
______they have been working hard to find?
A.Is that what
B.Is that
C.It is that
D.Is it that
答案
答案:A
首先确定本小题是问句,因此排除C选项;本小题That is后面的句子是表语从句,而后面的find缺乏宾语,因此要用what。B缺少find的宾语,D是强调句的一般疑问句形式。本小题“那就是他们一直苦苦寻找的。