Hello again @Alessandra_Gentile_J!
Regarding the reading test, I have passed your feedback to our academic team. One thing you could do right now if you feel this is a problem is not sending them the first activity and instead going through it verbally, explaining to them that you will tell them when the time us up, without mentioning a specific time limit so they don't panic.
About the student responses, even after the lesson is closed, your students can still open it from their Study History panel and submit any missing responses. This will get you those neat little numbers
I hope this helps and let me know if you need anything else!
The EF Class Team