---Free bikes are in use(投入使用) in many places , shall we borrow one this Sunday?---
—What a heavy rain!—So it is. I prefer ________ instead of _______ on such a rainy day.
— At present, one of the best ways to study is working in groups.—More chances _______ to students to learn from each other.
— Can we leave the classroom now?— No, you ______. You ______ to leave until the bell rings.
—John was heard ________ just now. What happened?—People was telling a joke.
Mary’s grandpa lives ______ in the mountain village. He tells her he feels very______. So she’s going to visit him next week.