Now more people are paying attention to the school bus safety. — So we believe ________ there will be fewer accidents in the future.

Tokyo will host2020 Sumner Olympics． —Really? It will befirst Asian city to host the Olympics twice．

The number of the students in our school very big.–About 9 students.

Everyone says that he is difficult to _______，but I don’t think so.

Let’s play volleyball. ——Ok, that sounds ____.