---- What about the two MP3s? ---- Sorry, but I don’t like _____ of them. Would you please show me a third one?
I don’t understand what the teacher means, but I’ve got ____ rough idea of ____ plan.
I need time to _______ on what the teacher taught in class.
Many students are not __________ the harm of staying up late into the night, which causes damage to their health.
Please post this letter in the post office nearby, and __________, I will get two tickets in the train station.
. A clean environment can help the city bid for the Olympics, ________ in turn will promote its economic development.