问题
选择题
________ the global economy is showing signs of recovery, many developing countries are still suffering.
A．As
B．Where
C．How
D．While
答案
答案：D
题目分析：句意：虽然全球的经济有复苏的迹象，许多发展中国家仍然处于困境。表示“虽然”且置于句首的词有：while, although, though。as有“虽然”的意思，但必须用于倒装句。如：child as he is , he knows a lot. 倒装句中除了as，还可以用though。