In this task, you are given a context tweet and an answer. Your job is to generate a question for the given answer based on the given tweet paragraph. Note that your question should be answerable based on the given tweet, and the answer to your question should be the given answer.
--------
Question: Context: The fact that Harry Reid called up Murthy right away on Monday proves this vote was going to happen with or without Cruz's amnesty vote Amanda Carpenter (@amandacarpenter) December 16, 2014 Answer: harry reid.

Answer: who called murthy on monday?

Question: Context: Supporting a @Marvel fan's cancer fight, stars inc @clarkgregg participate in #CapForStrat 8 Clark Gregg Reporter (@TheCGReporter) May 15, 2014 Answer: capforstrat

Answer: what are they participating in?

Question: Context: History is made! #MontrealProtocol countries agree to curb powerful greenhouse gases in largest climate breakthrough since Paris. 🌍🌎🌏 UN Environment (@UNEP) October 15, 2016 Answer: curb greenhouse gases

Answer:
what did @montrealprotocol countries agree to?