根据英文释义写出单词
________ a simple chemical substance that is found in water, and also exists as a gas which is lighter than air
________ something that gives you advantages or improves your life in some way
________ a quality or power that belongs naturally to something
同义句改写
Mary is the tallest girl in her class.
Mary is ________ than ________ other girl in her class.
Their football team seems to win the game.
________ ________ that their football team will win the game.
They like Chinese food better than Japanese food.
They ________ Chinese food ________ Japanese food.
The boy is so young that he can't dress himself.
The boy is ________ young ________ dress himself.
However hard it is, we'll never give up.
________ ________ how hard it is, we'll never give up.
用适当的介词或副词填空
What do you usually feed your cat ________?
Look out! The car nearly knocked you ________.