1, At 8 a.m tomorrow , he ( chat)will be chatting with his friends in America .

2, Listen! Our teacher (try)is trying to explain very important knowledge .

3, Thanks for your invitation to your party tomorrow , but I (work)will work all day tomorrow .

4, It (take)took people a lot of time to send a letter to those who live far away ten years ago .

5, In the next 15 years, peple (communicate)will be communicating with each other by glasses.

ard.

1, will be chatting 

2,is trying 

3, will work 

4,took 

5, will be communicating 

6, will you be watching 

7, will be writing

8,will be controling 

9, was , were keeping

10, will always make