ENGLISH Learn:41.We shall ask for samples _________ and then we can make our decision.A.to be sent B.being sent C.to send D.to have been sent
问题描述：
ENGLISH Learn:41.We shall ask for samples _________ and then we can make our decision.
A.to be sent B.being sent C.to send D.to have been sent
答
B
答
A.不定式做定语,修饰名词samples,samples不能自己送,用被动形式.
答
A,一表被动，二根据后面证明还没有发生，用to do可表将来
答
c
答
句式不完整,应该加上 to us
不过硬选择就选择 A,即：to be sent to us