Question

．—This math problem is too difficult. Can you show me _______, Dad?
—Sure.

A．what to work out	B．what to work out it
C．how to work it out	D．how to work out it

Answer 1

C

试题分析：句意：这个数学难题太难了。爸爸，你能演示给我怎样算出它来吗？疑问词加动词不定式可以做句子的宾语。选择什么疑问词和句所缺少的成分有关，根据句意，该句缺少方式副词，故选C。