they think it is a waste of time to do it now能不能改成they think

they think it is a waste of time to do it now能不能改成they think it is a waste of time to do 这个句子 it is a waste of time doing还是to do I think it's waste of time to hang ------ we think it is a miracle that they were able to do so i think it is time for to leave now 请问,It is a waste of time 后该用to do 还是 doing What time of day is it,do you think i don't think it waste of time to be with children all year do they think they can do it t___? It is only a waste of time 英语翻译Now is no time to think of what you do not have.Think of