Is my sentences correct? I payed tennis lately. Recently I played tennis. Did you play tennis recently? Yes I did. Can you explain the grammar please.

about grammar On one forum about grammar I saw an entry, where was written "Recently, I read some newspapers about flowers", and I don't understand it because in the sentence author used word "recently", so it must be used Present Perfect time in the whole sentence like "Recently, I have read some newspapers about flowers". Native speakers didn't correct this part, maybe because it is grammatically correct? But I still don't understand why they didn't correct it? Is this sentence grammatically correct with Present Simple? Explain me please, I am so confused with it.

What´s the difference between: What should I call you? What can I call you? How can I call you?

Is it grammatically correct to say? "He reads magazines over and over again every day" Does this sentence grammatically correct? Explain the grammar?

Which one is correct? I am a 19 years old girl. or I am a 19 year old girl?? I think first one is more correct because 19 is plural, so it is "years". Am I correct? If not, explain why, please.

Is the following sentence correct with or without "the" article? Is the following sentence correct with or without "the" article?? I had an interview for (the) next class of the course.

Correct the sentences. Which of them are correct and wich of them are incorrect? Or they are all correct? 1. That was my first time eating it. 2. That was the first time eating it. 3. That was the first time I ate it. 4. It was the first time I ate it. ??

While I .. While I was singing karaoke with my friend, he was watching TV by himself/alone. How is better to say from a grammatical point of view: "he was watching TV by himself" or "he was watching TV alone"?