D． To help attract other insects and make hives stronger.

　　5．Apples and beans are mentioned in the third paragraph to show that .

　　A．bees are of great importance to fruits and vegetables

　　B．bees mainly live on these agricultural crops

　　C．bees supply human beings with basic food

　　D．bees can bring in more money for farmers every year

　　6．What is most likely to cause the worker bees to leave their hives behind?

　　A．The abuse of pesticides. B．The lack of food.

　　C．The fighting among bees. D．The destruction of the habitats.

　　7．What would the author probably discuss in the paragraph that follows?

　　A．Other tips for choosing seeds. B．Another way to save bees.

　　C．More methods to plant green organic fruits.

　　D．Causes of the decline in the wild bee population.

　　"Can I hug you？"community nurse Joyce Jebambula asks with a smile as she welcomes me back to her village."Of course，" I say as I put my arms around her.It's an unbelievable moment.Just at the height of the outbreak more than a year ago，there was an "avoid body contact" rule here.It's now been removed.

　　One of the most challenging parts of reporting this outbreak over the past 18 months is that I haven't been able to touch anyone in the worst­affected countries.When Ebola (埃博拉病毒) survivors described in tears losing their families，I had to almost sit on my hands to avoid reaching out to comfort them.

　　The outbreak was declared over in Sierra Leone on November 7.I returned for the celebrations.But despite reaching this long­awaited milestone，all is not well.

　　Ibrahim Koroma, 21，clings to his survivor's certificate（证书） outside the home.All 17 of his family are now dead.The certificate is one of his most prized possessions. "He does not pose any risk to the community." it reads.

　　Ibrahim tells me how his landlord has allowed him to stay in one of the rooms of his former family home until the end of the year.He says he doesn't know what he'll do after that.He does some part­time work，relying heavily on help from neighbours.His two little sisters and little brother died in the very room where he now sleeps.He says he often lies awake thinking of them，feeling very bad.

The Ebola outbreak in West Africa was the worst on record.In past outbreaks there had only been a few hundred deaths and a few hundred survivors.It was thought that Ebola could live for only three months.But research has now shown it can linger for at least nine months.Scientists are