It is he often fails in exams makes his parents worried about him.
A. because;that
B. that;that
C. 不填;that
D. what;that
网友回答
A. because;that
(答案→)B. that;that
C. 不填;that
D. what;that
解析:考查主语从句和强调句:首先第二个填that为强调句,It is ...that...中的that 为固定搭配,去掉It is ...that...来看,这是句子为That he often fails in exams makes his parents worried about him.在这一句中That he often fails in exams 为主句,这是个强调的主语从句,选B。