question:Write a multichoice question for the following article: Article: John went to the park to play basketball. He met Tom there. Tom said, Do you have a basketball? John said, No. Tom said, I have two basketballs. You can use one. John said, Thanks! They played basketball together. They played for two hours. They had a good time. Then John said, It's five o'clock. I must go home now. Tom said, OK. See you tomorrow! John and Tom shook hands and said goodbye.

question:Found the following article online, use it to answer the question: Which organization is involved in the research? The World Health Organization (WHO) is conducting research to determine the effectiveness of a new vaccine for the Ebola virus. The trial will take place in several African countries and will involve thousands of participants. The vaccine has shown promising results in previous animal experiments, but its safety and effectiveness in humans have not yet been established. The WHO hopes that the new vaccine will provide a breakthrough in the fight against Ebola.

question:Suppose it's true that the science experiment requires a beaker, a thermometer, and hydrochloric acid. Then, is The experiment can be conducted without using the beaker always, sometimes, or never true?

question:choose the most plausible alternative. The beach was closed to the public. because... There was a hurricane alert. It was a private event.