Question

三个英语小问题：1. What do you think ____ we should do to get the most out of reading? 填that还是

1. What do you think ____ we should do to get the most out of reading?
填that还是不填？
2. At last he found he was back 【where】 he had been.
where可以替换成in which吗？
3. 是how much is the population还是what is the population？

谢谢

Answer 1

1. 不填。what就是do的宾语，对宾语提问，不需要其他的关联词。

2. where不可以替换成in which，因为where是后面地点状语从句的地点状语，用where，
   不是定语从句，不能换

3. what is the population？是对的，人口是一个数字，对数字提问用what。