4,（ ）This article covers the reasons why people used to have the belief _______the world was flat
问题描述：
4,（ ）This article covers the reasons why people used to have the belief _______the world was flat
A.which B.that C.what D.whether
5,（ ）------How do you respond when _______whether your girlfriend or wife looks fat
-------never say what you think,she just wants some reassurance（肯定）from you that she isattractive.
A,asking B,to ask C,asked D,being asked
答
B that 引导同位语从句 ,对前面名词其解释说明作用.D 当被问起.when +分词属于一种省略,完整的是：when you are being asked