-Do you know Earth Day?-Sure, it _______ in 1970 to tell us to protect our earth.
Could you tell me ______?
The Sixth East Asian Games were held in Tianjin last month. The underlined part means ______.
We’d better ______ more trees in our city to make it more beautiful.
______ people in Yuyao lost their homes because of Typhoon Fitow.
Amy and Frank went to the concert, but ______ of them enjoyed the performance.