问题
选择题
Bamboo（竹子）is made ______ pipes（管道）______ carrying water______ some farmers in the countryside.
A. by; for; into B. for; by; into C. into; for ; by
答案
答案：C
本题考查介词。句中be made into被制成；for用来，by通过。句意：竹子被一些乡村农民制成管道用来运水。
