295.It is not rare in _______ that people in _____ fifties are going to university for furthereducation.
A.1990s;the
B.the 1990s;/
C.1990s;their
D.the 1990s;their
296.Every few _____ along the Great Wall there are some watch towers.
A.hundred metres
B.hundreds metre
C.hundreds of metre
D.hundred of metres
295.答案是D;
表示几十年代时用定冠词the+年代的复数;表示几十多岁时,用one's + 几十的复数。
296.答案是A;
hundred,thousand,million等词被数词修饰时用单数。