Question

This experiment will show us ________ can be used in the modern laboratory．

1. A.
   that you have invented
2. B.
   how that you have invented
3. C.
   that how you have invented
4. D.
   how what you have invented

Answer 1

D
考查賓語從句和主語從句。本句話的意思為：這個實(shí)驗(yàn)將告訴我們在現(xiàn)代實(shí)驗(yàn)室中我們?nèi)绾尾拍苓\(yùn)用到發(fā)明的東西。how引導(dǎo)的是show的賓語從句，同時在賓語從句中又使用了what所引導(dǎo)的主語從句，what作invented的賓語。