Ⅰ.单词拼写
根据汉语或首字母提示，写出下列单词
1．The two continents were connected by a mass(块) of land at one time.
2．The rainfall(降水量) averages 36 inches a year.
3．When you left our space，you weren't in a fit state(状态)．
4．The manager failed to see the commercial(商业的) value of his discovery.
5．Several factors had combined to ruin his company.Then he fell into extreme(极度的) difficulties.
6．They discussed how to promote cooperation between the two countries.
7．Nobody knows what the depth of the lake is.
8．Christopher Columbus is one of the most famous explorer in history.
9．How long can you balance on one leg?
10．Christmas is an annual festival for most of the western countries.
