i think students need time to play and think,___?反义疑问句

问题描述:

i think students need time to play and think,___?反义疑问句

主句谓语是think,believe,expect,suppose,imagine等引导的定语从句,疑问部分与宾语从句相对应构成反意疑问句.
所以应该填don't they,