Seems pretty clear to me. You see “Task 3,” instructions (“Continue the dialogue with Bob:”, capital C for continue and colon ending the clause), and then “Task 4.” But you can come to your own conclusions, if you think context is missing.

Forgive me if I am not so sympathetic with the teacher who created/graded this. My experience of school was much closer to a torture experience conditioning me to be a good little servant than anything else. I had overwhelmingly bad teachers who made that experience all the worse and should never have gotten and kept their teaching positions. Though I remember the few good teachers all the more favorably, and have stayed in touch with a few of them. This is just to say that I’m a little biased, but that bias is also rooted in reality.