文档介绍：2022年5月SAT考试语法真题
答案：A
解析：that引导estimated的宾语从句，A选项spend time doing something是正确用法，A对。B选项没有主句，只有who引导的从句。C中they spen the world, the Sahara covers well over three million square miles, and eleven countries are spanned by it.
, and eleven countries are spanned by it
and spanning eleven countries
and spans eleven countries
, it spans eleven countries
, with eleven countries spanned by it
答案：C
解析：A选项表达不简洁，尽量遵循“主语主动全都”。B中and前后不平行，covers和spanning不能平行。C选项用covers和spans平行，简洁明白，C正确。D选项run-on。E选项表达不够简洁和直接。
7. Adopted in 1997, the Kyoto Protocol is what was the international agreement to reduce the greenhouse gas emissions of industrialized nations over a five-year period.
what was the international agreement
when it was internationally agreed
where the international agreement was
internationally agreed
the international agreement
答案：E
解析：主语是the Kyoto Protocol，BC选项语义错误。A选项中语序错误，从句中应当使用陈述句语气。D选项没有谓语动词。E正确。
8. During the 1990s, the number of factory outlet malls greatly increased in the United States, at which brand-name goods are sold at discount prices.
the 1990s, the number of factory outlet malls greatly increased in the United States, at which brand