Teacher: In this task, a passage will be given and the goal is to generate a question about temporal relations based on that passage. A temporal relation describes the relation between two things with respect to time e.g., something happens/starts/terminates/... immediately/shortly/usually/... before/after/during/... something else.
Your question should include an event, or ask about an event, and should not be a yes/no question.
Teacher: Now, understand the problem? If you are still confused, see the following example:
Passage: I submitted the hit. The hit was approved, and then I was paid.
Solution: What happened after I submitted the hit?
Reason: This is a valid temporal question based on the given paragraph. Events approved and paid have a temporal relation "after" with the event submitted.

Now, solve this instance: Passage: The construction of the transnational oil pipeline signifies that the energy cooperation between China and Kazakhstan has stepped into a new phase, said Yin Juntai, deputy general-manager of China Petroleum Exploration and Development Company. He said currently the CNPC has 53 projects in 21 countries, including three exploration projects, four oilfields and two pipeline projects in Kazakhstan.
Student:
What event has already finished?