I forgot to include a few more sentences. Thank you.

1.What did you eat last weekend/over last weekend?
2.See words on the back (of the photocopy)
3.I noticed later that you had written the missing words on the back of the photocopy.
4.What time did you go to bed Saturday evening? (on Saturday evening, last Saturday evening?) Are both possible?
5.Did you sleep at Matteo’s (house)? Did you to go to Matteo’s last night?
6.What did you buy your cousin for Christmas? Can you say: “ What did you buy for your cousin for C.?

2. No ending pereiod?

4. yes

6. yes

Sra

1. If you're asking someone what they ate last weekend, you can simply phrase the question as "What did you eat last weekend?" This is a direct question asking for specific information about their eating habits during the past weekend.

2. To inquire about seeing words on the back of a photocopy, you can ask, "Can you see the words on the back of the photocopy?" This question focuses on the ability to see the words and assumes the photocopy has words printed on both sides.

3. If you want to mention that you noticed someone had written missing words on the back of a photocopy, you can say, "I noticed later that you had written the missing words on the back of the photocopy." This sentence explicitly states that you noticed the act of writing the missing words on the back of the photocopy.

4. To ask about the time someone went to bed on Saturday evening, you can use either "What time did you go to bed on Saturday evening?" or "What time did you go to bed last Saturday evening?" Both versions are grammatically correct and convey the same meaning. The choice between "on Saturday evening" and "last Saturday evening" depends on personal style and preference.

5. If you want to ask if someone slept at Matteo's house or if they went to Matteo's house last night, you can ask, "Did you sleep at Matteo's?" or "Did you go to Matteo's last night?" These questions inquire about the person's location and activities, specifically regarding Matteo's house.

6. If you want to ask someone what they bought for their cousin for Christmas, you can ask, "What did you buy your cousin for Christmas?" This question directly asks about the gift they purchased for their cousin. The alternative phrasing, "What did you buy for your cousin for Christmas?" is also correct and conveys the same meaning. Both versions are grammatically acceptable.