Bài 1 : Supply the correct prepositions : 1. What are you going to do ............................ the weekend ? 2.What are we going to do .......................... the vacation ? 3. We are going ..................vacation. 4. ......................... Sunday mornings , we go fishing . 5. ................................ the morning , we often do morning exercise. 6.We are going to camp ...................... three days. 7. What are you going to do .............. your free time ? 8.He is going to stay ....................... his friend's house..........................a week. 9.he is going to stay ............................... his uncle and aunt. 10.We are going to stay ..................... a hotel ................ Thanh Hoa. Các bạn chỉ cần điền từ vào chỗ chấm thôi nhé , Mình cảm ơn các bạn nhiều nha