甲某长期下落不明，经其配偶乙向法院申请，法院判决宣告甲死亡。其后，乙就与丁结婚，并将其6岁的儿子送给丙收养，双方办理了收养手续。实际上甲并未死亡。经甲请求法院撤销了对其死亡的宣告。甲回家后发现儿子被人收养，乙也改嫁他人，但丁已死亡。因此，甲就要求与乙恢复婚姻关系，并以自己未同意将儿子送丙收养主张收养无效。人民法院应该( )。
A. 确认甲、乙的婚姻关系自动恢复，收养关系有效
B. 驳回甲要求恢复婚姻关系的请求，确认收养关系有效
C. 确认甲、乙的婚姻关系自动恢复，收养关系无效
D. 驳回甲要求恢复婚姻关系的请求，收养关系无效
His main concern in the evenings was to ______.
A. take some physical exercise
B. avoid being robbed in the street
C. overcome his loneliness
D. explore the sights of the city
Travelling companions are a disadvantage, according to the writer, because they ______.
A. give you the wrong impression about the journey
B. distract you from your reading
C. intrude on your private observations
D. prevent you from saying what you think
It has been assumed by Japanese that he ______.
A. belongs to a group of botanists
B. is excessively odd to travel alone
C. needs to be directed to his hotel
D. has wandered away from his party
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