【题目】The natural scenery and the newly-built tall buildings along the streets ____ the beauty of my hometown.
A.add up
B.add to
C.are added up
D.are added to

【答案】B
【解析】句意：沿着街道的自然风景和新建的高楼增添了我家乡的美丽。add up”合计，加起来，合乎情理“；add to”增加，增添“。根据句意可知选B。