經安全檢測,此網站為安全網站,請放心前往原始網址!

Present Perfect Continuous and the Passive Voice | TeachingEnglish | British Council | BBC

Hi,You can't say it isn't used. It's fully legitimate. Perfect Progressive tenses have their very logical reason to exist, i.e., they allow to express continuous actions. While Passive Voice also has its reason to exist - it's needed when we don't know th

www.teachingenglish.org.uk

網址安全性掃描由 google 提供