hotter
                    - When summer comes, the weather becomes __________ and the flowers become __________.
 - The weather in Guangzhou is hotter than_____ in Harbin.
 - The weather in Guangzhou is hotter than ________ in Beijing in summer.
 - The weather in Guangzhou is hotter than_____ in Harbin.
 - The weather in Guangzhou is hotter than ________ in Beijing in summer.