1. It has been raining
2. He is studying at the library ....he has been reviewing
3.You have been exercising
4.We have been waiting
5.A car alarm is ringing....It is driving me...It has been ringing for....
6.....is really improving... He has been watching ..... and has been studying
7 A:...... Have you been getting enough sleep...
B: I have been sleeping ..........I have been feeling a little sick.....
A:...
B : I am currently taking some medicine........