问题
选择题
North Korea fired a long-range rocket last month, but the launch was reported ______ in failure.
A．to end
B．to have ended
C．having ended
D．ending
答案
答案：B
考查固定句型。Be reported to do sth 报道做了某事，如果是强调一个已经完成的事情，使用不定式的完成式。句意：朝鲜上个月发射了一枚火箭，但是本次发射据报道已经失败了。
