问答题 Every April, along with many other species of birds, the swallow arrives to spend the summer months in northern Europe, Iran and parts of Russia’s Siberia. Here it will breed and raise its young. The swallow is well known for several reasons. Firstly, it is very distinctive, with its forked tail and characteristic acrobatic swooping flight. Secondly, it is very common, and, like its near relative the house martin, lives in close proximity to human habitation, at least in rural areas. 【B1】_________