Detailed Instructions: In this task, you will be shown an incorrect English sentence. You need to generate a corrected form of the input sentence.
See one example below:
Problem: The car's wheel are loose.
Solution: The car's wheel is loose.
Explanation: The instance of are is replaced by the word is. This makes the sentence grammatically correct.

Problem: First , they have spend many time on the computer , so they does n't know how to communicate . 
Solution:
First , they have spend a lot of time on the computer , so they do n't know how to communicate . 