Question

haven't you seen the notice "no photos_____here"? --- I am sorry, I _____________

A, is allowed taking ,didn't notice B. should be allowed to take , haven't noticed C.s allowed to take , was not noticing D. should be allowed taking, was not noticing
B 对吗？

Answer 1

选A,
allow doing sth.允许做某事
例：The hospital does not allow smoking.医院里不允许吸烟。
例句中No photos is allowed taking here. 和这里的语法是一样的， photos和take构成被动，所以用allowed。

allow sb to do sth .允许某人做某事
例：Teacher allow students to have a short break after long trainning.
老师允许学生在长时间的训练以后稍作休息。

be allowed sb to do sth 被允许做某事
例：He is allowed to go to university for his good performance.
他因为表现好而被允许进入大学。

I didn't notice 表示我过去没注意到，当说话人告诉我的时候我已经注意到了，所以不能用B中的完成时，也不能用过去进行时。

Answer 2

选A

wdsdnnc 解释得非常好...

这个问题是四级以下的

Answer 3

c

追问

B 为什么不对，不能选B吗？

追答

B选项的翻译完全不通