问题补充：
---Ann looks hot and dry.
---So you if you had a high fever.
A. do
B. are
C. will
D. would
答案：
A. do
B. are
C. will
(答案→)D. would
解析：1. 答句为含有if引导的条件状语从句的主从复合句。根据状语从句时态的“主将从现”原则，主句应该使用一般将来时，排除AB；2. 另外要注意if从句中的had，表明其使用了虚拟语气。所以根据相关语法，主句的谓语构成应该是“would do sth.”。所以答案为D。3. 即：so would you if you had a high fever= you would (also) look hot and dry if you had a big fever 。so would you表示不同的主语有着相同的（肯定的）情况，即“你和Ann一样，也会看起来口干舌燥的样子”。
