Then he smiled 1 the waiter returned with a very unhappy look on his face.
问题描述：
Then he smiled 1 the waiter returned with a very unhappy look on his face.
.A.as B.and
C.so D.though
为什么选A不选D
答
选项 D 当然是对的 如果这是孤立的句子 的话 但是 本句 是有上下文 的That is correct,sir.We have never yet been unable to meet our customers‘ requirements.” “Very well,” the man said.“In that case,br...