早上露西遇见长辈李先生,她主动问好,应该说:_______
____ animals are in danger and there will be ____ space for them if we don’t take any actions.
You’d better _________ to the old like that, it’s ________.
The rich man _______ much food_________ the poor families in the past.
— Is Jim coming by train? —I’m not sure. He_________ drive his car.
The air in Taizhou is getting ________ cleaner now than a few years ago.