按顺序排列的元音字母正确的是_____________ A. Aa Ii Ee Oo Uu B. Aa Ee Ii Oo Uu C. Aa Ee Oo Uu Ii
----- It’s smoggy(多雾的) these days in Beijing city. That’s terrible! ----- Yes, I hope to plant trees.________ trees, ______air pollution.
— What’s the weather like today? — It’s as ______ as yesterday. You can wear shorts.
— What did you think of the show? — It was ________. We all enjoyed it.
The safety of food has become one of the _________ problems in our daily life.
We must _______ what he is doing now and then we can take action.