Hi Ahtoh, I'm not sure what the whole sentence is, but is sounds like some written material was filed on the computer, so therefore you could say that the computer was used to file the material. We sometime use the phrase "put on file" which means "to file a document" so you can file a document on the computer or in a folder. Does that make sense to you? Regards, Sinead

Hi Bambang, if you are referring only to one day you could say "I miss the day when we practiced speaking English". You would use the past simple here. However, if you used to practice English often over a long period of time in the past, you could say "I miss the days when we used to practice speaking English." Hope this helps! Sinead

Hi Sinem, No they are not the same. The first one "I want to know if he would cheat on me" is asking if he would possibly cheat on me any time in the future. Whereas the second one "I want to know if he cheated on me" is talking about the past, so you want to know if he cheated on you in the past. Hope this helps. Sinead

Hi Aziz, I have a degree in business administration. I have a Bachelor’s degree in Business Administration. Hope this helps, Sinead

Hi Anny, as well as the great advice you've already been given above, I would suggest having a strategy/plan and stick to it to practice the four core skills everyday. Getting your writing to a C1 level takes time, although your writing already seems very good from your question above. Learn advanced vocabulary, collocations, phrasal verbs and idioms, lots of reading, listening and speaking about the topics that generally come up at C1 level, and of course taking lessons is an obvious suggestion, particularly for writing as you will need someone to correct your essays and guide you in the right direction. Do some practice tests as often as you can. Hope this helps but let me know if you have any questions. Sinead

The first sentence is correct. Just missing "is" from the other two sentences. You never know how tasty something "is" until you try it. You never know how tasty something "is" without tasting it.

Yes all are correct and mean the same thing, and can be used interchangeably. "Get back home" means "to return home". Hope this helps. Sinead

Hi Yuta, the word "over" in this context is used to show movement, so we can use many phrasal verbs to show movement, such as: "come over" "can you come over?" which means "can you come to see me"; "Go over" means "revise or review" "fall over" means to to fall from an upright or standing position to a horizontal position" "Move over" "can you move over so that I can sit on the couch with you" and "Pull over" means "to stop the car on the side of the road" "I need to pull over" "Can you pull over?" I hope these examples help, but let me know if you have any questions. Sinead