几道高一英语填空题根据句意填入空白处相应的介词+关系代词:1.Thecleverboymadeaholeinthewall,_____hecouldseewhatwashappeninginsidethehouse.2.Thetwothings__________Marxwasnotsureweregrammarandsomeof

问题：几道高一英语填空题根据句意填入空白处相应的介词+关系代词:1.Thecleverboymadeaholeinthewall,_____hecouldseewhatwashappeninginsidethehouse.2.Thetwothings__________Marxwasnotsureweregrammarandsomeof

答案：↓↓↓

梁睿超的回答：

网友采纳　　bywhich　　aboutwhich