Complete the following sentence with a (compound) word derived from the one(s) given in bracket.
The weather （ ） greatly from morning till night in that area. (variable)
【正确答案】：VARIES
【题目解析】：
根据前文weather说明它是主语，后文greatly要形容动词，说明空格处应该要填动词，variable的动词为vary，又weather是第三人称单数的形式，所以应该要填varies。句意：那个地区的天气从早到晚变化很大。