1 . 根据所给汉语或英语提示完成句子
① But arts groups bring broader     1     (价值) to our communities.
②They were seen as nearly     2     (无价值的).
③For many who made it to Dawson, however, the rewards were     3     (值得) the difficult trip.
④ But still we cannot get the money’s     4    (价值).
⑤Some experts     5     (怀疑) 3D food printing.
⑥ I have my doubts     6     anyone has actually followed the procedures strictly.
⑦There is no     7     that Catherine is     8     of her future, for she     9     whether she can continue to work.(doubt)