久久亚洲国产成人影院-久久亚洲国产的中文-久久亚洲国产高清-久久亚洲国产精品-亚洲图片偷拍自拍-亚洲图色视频

您現在的位置: Language Tips > BBC > QA of the Week

Past Perfect v Present Perfect 現在完成時和過去完成時的區別

Past Perfect v Present Perfect 現在完成時和過去完成時的區別

Can you tell me the difference between the past perfect and the present perfect tense?

Various listeners

收聽與下載

This week Finn and Wang Fei are in the BBC Learning English restaurant, where they are ordering some tasty food such as 口水雞、羊肉串兒 and 回鍋肉。

While they are ordering the food, they ask each other if they have tried these foods before.

The questions they ask either use the past perfect or present perfect tense.

Listen to the programme to see if you can tell which tense is which.

Here is a simple guide to the difference.

1) Present perfect

We use the present perfect to describe or ask about something that happened at an unspecified time in the past. We use has or have with the past participle, for example:

Have you visited Paris?

Past Perfect v Present Perfect 現在完成時和過去完成時的區別

Have you tried fish and chips?

2) Past perfect

We use it to describe a completed action that happened in the past, before another event in the past. This time we use had plus the past participle.

Had you visited Paris before you went to London?

If you have a question about the English language, email us at chinaelt@bbc.co.uk.

We might produce a programme about your question.

主站蜘蛛池模板: 久久精品免费视频观看 | 九色视频在线观看免费 | 久久亚洲国产成人影院 | 1024香蕉国产在线视频 | 亚洲欧美日韩一区 | 国产在线爱做人成小视频 | 亚洲欧美日本在线观看 | 亚洲m男在线中文字幕 | 欧美一级爱操视频 | 免费国产视频在线观看 | 欧美久在线观看在线观看 | 国产人做人爱免费视频 | 亚洲综合小视频 | 成年网站免费 | 国产欧美一级片 | 亚洲精品国产经典一区二区 | 免费观看日本特色做爰视频在线 | 在线观看欧洲成人免费视频 | 99re伊人 | 大陆精品自在线拍国语 | 国产日韩欧美精品 | 久草资源免费 | 91福利国产在线观看香蕉 | 欧美首页| 黄色三级视频在线播放 | 看久久久久毛片婷婷色 | 欧美国产精品不卡在线观看 | 久草久视频 | 久久精品中文字幕不卡一二区 | 日本无玛| 国产成人免费视频精品一区二区 | 久久精品国产亚洲网站 | 在线成人天天鲁夜啪视频 | 67194国产精品 | 18videosex性欧美69 | 波多野结衣中文在线播放 | 亚洲欧美久久精品 | 久久草在线视频播放 | 老司机免费福利午夜入口ae58 | 欧美日韩中文字幕在线视频 | 一级女毛片 |