The lift in that tall building went wrong and got trapped _____ floors. People in it had no way to get out.
– What’s left in the bottle standing on the table? – ________
– Who did you see playing in/on the playground? – ________
– How many students did you see playing in/on the playground? – ________
Of the most popular films in China this year, ________ was produced in this city
To keep our world a clean tidy home, we must not throw wastes ________