French language Q&A Forum

I thought I was fairly au fait with this, but this particular exercise has completely tangled me up. Why is it passé composé for "he continued to work"? Surely this is kind of ipso facto a "continuing activity in the past" so I don't get the rationale for it being passé composé. Similarly, surely he was writing beautiful lyrics throughout his career - a continuing activity in the past. So again, why the passé composé and not the imparfait? I'm mind-bogglingly confused here!

The lesson states, "Just as in English, you can state something with a querying tone..." but none of the above examples sound like questions to me. They all sound like flat statements. The voice does not rise at the ends of these questions like it would in English. Is a "querying tone" different in French? 

Hello!

I am wondering if someone can explain the difference between "un emploi du temps", "un horaire", "un planning/un plan" and "un calendrier". I have seen all of these as meaning "schedule" and am confused about the distinctions between them (and why the latter three were not listed as appropriate alternatives in the context of this exercise). 

Merci bien!