It’s essential for citizens to know that the haze(雾霾.can do harm ________ people’s health.
— Simon, I wonder ________. — Last Saturday.
Look at the photo of the Smiths. _______ happy they are!
Would you mind ________ me how ________ English words?
— What kind of movies do you like? — I like the movies ________are about Chinese history.
― How do you feel when you watch the national flag go up?― It makes me ________ very proud.