Don’t laugh ____ him, he only made a small mistake. [ ]

Please stand when you answer the teacher’s questions in class.[ ]

__________ volunteers will be needed for 2014 International Horticulture Exposition (国际园艺博览会) in Qingdao.— Let’s go and join them.

“We will learn English words this year,” the teacher said to the students.

Waikiki is one of the best beaches _____ surfing in Honolulu. [ ]