there were ( )going to Hainan Island for their holiday at that time.用think about 的适当形式填空

问题描述:

there were ( )going to Hainan Island for their holiday at that time.用think about 的适当形式填空

填写:thinking about 考虑
解析:at that time 是一个词组“在那时”的意思,所以要用过去进行时
翻译:他们那时在考虑去海南岛度假