试题题干
A General Election in Britain must be held every （） years and is often held at more frequent intervals.
参考答案
正确答案：
试题解析
英国的大选必须每五年举行，而且通常会以更频繁的间隔举行。
A General Election in Britain must be held every （） years and is often held at more frequent intervals.
英国的大选必须每五年举行，而且通常会以更频繁的间隔举行。