it is impossible to say with any accuracy how many are affected 這個有2個動詞?is,are affected?又不形容詞子句或從屬子句?又沒有連接詞.?
- TOMING88Lv 79 個月前最佳解答
It is impossible to say-----S+vt--the arbitrary subject+an infinitive phrase
with any accuracy-----adj phrase to subj"It"
how many are affected-----subordinative noun clause.to the main clause.
Hence no adj clause, no need for conjunction
eg:-It is impossible to say "how many are affected"---a noun cl.