We can send you our sample ( ).A.on requestB.by requestC.in request
问题描述：
We can send you our sample ( ).
A.on request
B.by request
C.in request
答
A 是正确的
on request 一经要求
e.g.: Catalogues of our books will be sent on request.
书籍目录承索即寄。
by request 应邀，应(听众)的请求
e.g.: The film is being shown again by popular request.
应大家的要求，这部影片正在重映。
in request 为人们所需要; 受欢迎
These English newspapers have been much in request.
近来这些英语报纸的需求大增。
答
A
答
答案是A. A选项的意思是“按照要求”，B的意思是“应邀”，C的意思是“有需求”
答
B
答
A.on request
应要求