1 . Please call me back at your _______ (convenient). (所给词的适当形式填空)

2 . She is proud that both her children have a _______ (天赋) for music. (根据汉语提示单词拼写)

3 . Please deliver the goods at your earliest __________ (方便). （根据汉语提示单词拼写）

4 . We can keep in touch over email and that way, you can keep me _________ (陪伴) for the rest of the summer. （根据汉语提示单词拼写）

5 . He treated them with _________ (generous) and thoughtfulness.（所给词的适当形式填空）

6 . Ancient Roman built a large road network, which was a great _________. (成就). （根据汉语提示单词拼写）

7 . There were a number of ________ (locate) where the kings of Egypt built pyramids. (所给词的适当形式填空)

8 . Maisie wants to help others, so she joined a ________ (慈善) group. (根据汉语提示单词拼写)

9 . Peace and ________ (develop) are the two main themes of the world. （所给词的适当形式填空）

10 . Natural ________ (灾害) like earthquakes and floods can cause damage that is hard to measure. （根据汉语提示单词拼写）