为什么用not having recieved 作句子开头而不用having not received?
_ a reply,he decided to write again.为什么是not having recieved,
放在句子开头是Not having done还是Having not done
Not having received a reply,he decided to write another为什么是N
Not having received the invitation letter expected from the
Not having received an answer ,she decided to write another
not having done 还是having not done?
It must be teenages having fun 这里为什么要用having 而不用to have
It must be teenagers having fun 为什么这里要用having而不用to have
You seem to be having some problems.中为什么用having而不用have?
He is having a good time.为什么用having而不用hasing .
为什么用taught而不用having been taught?
Not having got any answer,he was rather worried.这句为什么用having