Question

otters are as common as mosquitoes in the Tigris marshes.
(Change the Degree.
41. The call had to be booked twenty-four hours in advance at that time.
(Change the Voice..
42. For the first twenty-four hours, Mijbil was neither hostile nor friendly.
(Use 'either ... or.)​

Answer 1

Answer:

Otters and mosquitos are the most common in the tigris marshes.

Book the call twenty-four hours at that time in advance.

For the first twenty-four hours, Mijbil was either hostile or friendly .

Answer 2

1. Otters and mosquitoes are more common than any other animals in the Tigris marshes.

2. One had to book the call twenty-four hours in advance at that time.

3. For the first twenty-four hours, Mijbil was either hostile or friendly.

Explanation

The 2 sentence was already a passive; We supplied the subject 'one' from our side and converted it into active voice.

'had to be booked' into 'booked'