.If you know __ it was thatwrite A Tale of Two Cities ,raise your hand.
A.who B.whom
(为什么不选whom)
2.In some countries ,___ are called "public schools" are notowned by the state.
A.what B.which
(为什么不选which）
3.Thinking___you know __ in fact you don't isa terrible mistake.
A.that thatB.what whatC.that what
D.what what
(能否划分一下句子结构）
1.由于被强调部分是主语，所以要用主格；2. 主语从句中缺少成分，而which表示的意思是“哪一个”，这和语境不符；what are called "public schools”的意思是：被称作公办学校的学校；3. 第一个空是宾语从句，用that引导；第二个空也是宾语从句，但是从句中缺少宾语，故用what引导。整个句子的意思是：认为你知道事实上你不知道的东西是个可怕的错误。
第一句里面who不是做know 的宾语，know的宾语应该是省略的that。who作后面强调句的主语成分，去掉it was who 是个完整的句子。第二句里面what引导的是名词性从句，后面有are ，所以what are called...作主语。which没有次功能。第三句。应该选C。that作thinking的宾语，引导宾语从句，后面的what
