---Do you know if we __________a picric next month?---I'm not sure. But if it __________ raining, maybe we will.
There're students in Grade7.
I want to buy a nice present ________ my mother and I must give it ________ her myself.
There is _______ 11-meter-long bridge over ______ river.
—Thank you. It’s kind of you to help me with my English. —________.
-Do you know? -Yes. She said she was in Sanya.