用in,by ,with完成句子。
1)He sang ___a low voice。
2)He is cutting the tree ____a knife。
3)He was killed ___a falling rock。
用in,by ,with完成句子。
1)He sang ___a low voice。
2)He is cutting the tree ____a knife。
3)He was killed ___a falling rock。
1 in , in a low voice式是 固定词组
2 with, with 用,他用刀砍树
3 by by被 ,他被一块坠落的岩石砸死
1.in
2.with
3.by
1. in
2. with
3. by
1. in
2. with
3. by
1)with
2)by
3)in