Answer:
1. I loved the way Mr. Grant described the solar system.
3. We might want to visit a planetarium to research our project.
Step-by-step explanation:
When reacting to a lecture that the professor just did, we must keep a formal tone of voice, and try to say what we liked and disliked, and if we did like it or not, 1 is great because it is specifying what did he like, and 3 is also good because it´s adding and proposiing osmething that could enrich the knowledge that they already learnt in the classroom with an activity that can benefit all the students to learn more and better about the solar system.