請依下文回答第 16 題至第 20 題         As 1.2 million people flee, Ukraine’s refugee crisis is only just beginning. __16__      the EU’ssolidarity in helping those escaping war, aid agencies are overwhelmed with many people stuck at borders.Just over a week after Russian rockets first began to slam into Ukraine, more than 1.2 million people havefled over the borders of neighbouring European countries into a __17__ and uncertain future. What weare __18__  , the United Nations has warned, is the largest refugee crisis in a century.         All week, the world has watched families fighting to board trains in chaotic crowds, fathers kissingtheir children goodbye through car windows, and seen the shock and__19__  on the faces of those whohave made it to safety. Most Ukrainians leaving their country are __20__ west into Poland, Moldova,Slovakia, Romania and Hungary, which have opened their borders to anyone trying to flee, althoughreports of pushbacks and racial discrimination against people of colour have emerged as the week hasprogressed.
【題組】16
(A) Without
(B) Although
(C) Upon
(D) Despite