---What was your impression of last night's lecture?
---________ speaking, I thought it was rather boring.
---Why do you think I am not popular among my classmates?
---Maybe you don't talk about topics that interest them,________ everything you say is friendly.
---Must I hand in my homework before this evening, sir?
---No, you ________ hand it in to me if you haven't enough time.
---It has started raining.
---Oh. really! I ________ it at all.