1.There is no point in cry now.
cry ---crying
There is no point in doing something 做.是没有用的
2.My mother is ill so I need stay at home to take care of her.
need 和 stay 间 加to
3.The hands of the clock pointed at half past one.
at---to
4.You are asked to pay for the bill in two day's time.
把time去掉