Question

【题目】 Is there anything ______?

A.you are not sure

B.about which you not quite sure

C.that you don’t understand

D.which you don’t understand

Answer 1

【答案】C

【解析】

试题分析：句意：有你不能理解的事情吗？本句中含有定语从句，先行词是anything，定语从句中关系代词that指代先行词作动词understand的宾语。因为先行词是不定代词，如果定语从句中缺少关系代词，只能使用that。A项缺少介词of；B项缺少系动词are。故C正确。