根据汉语提示，将单词的适当形式写在答题卡相应在的横线上。

小题1:These details are easily          （忽略）, so you should pay attention to them.

小题2:The industry     （繁荣）attracted Europeans including Jewish people.

小题3:Your return ticket is         （有效的）for three months.

小题4:Thank you for your help.        （否则）, we would not have finished our task on time.

小题5:This hotel is so popular that guests are asked to make      （预定）in advance.

读“我国华北地区1954～2002年气温与降水量变化示意图”，回答下列小题。

华北地区气温变化趋势的可能影响是（）

①缩短农作物的生长期

②减少植物病虫害

③减少供暖的能源消耗

④加剧水资源的供需矛盾

A.①②

B.③④

C.①④

D.②③