用所给短语的适当形式填空

题目

用所给短语的适当形式填空
in the sixth century,according to,fall into,by accident,in this way
1.------the passage,I understood this sentence.
2.Tea,the most popular drink in the world(after water),was invented------.
3.------,he worked out that math problem.
4.He was so careless that he------the river when he went across the bridge yesterday.
5.The abacus was invented------by the Chinese.

答案

1.according to,根据文章,我明天了这个句子.2.by accident,茶,世界上最流行的饮品（在水之后）,是偶然发明出来的.3.In this way,用这种方法,他做出了这道数学题.4.fell into,他如此的粗心以至于当他昨天过桥时掉进了...