6.
...they will be sleeping.
...we will be travelling.
...we will be packing.
...she will be typing.
7.
I have not eaten today.
I had finished my homework by 7 o'clock yesterday.
I will have cleaned my room by 11 o'clock tomorrow.
8.
Is resistor one of the most common elements of any circuit?
What is the most common element of any circuit?
Which circuit is resistor one of the most common elements of?
Is resistor one of the most common elements of any circuit or any circus?
A resistor is one of the most common elements of any circuit, isn't it?