Oas shown between brackets:
1. we drink coffee every morning. (ask a question).
2. they travelled to cairo yesterday. (negative).
3. he drinks tea in the morning. (change into passive).
a. ali read a story last week. (ask a question starting with
5. lam cooking dinner at the moment. (change into passive).
6. my father came when we (are) eating. (correct the verb).
7. a thief (enter) my room while i was sleeping. (correct the verb)
8. i have not visited him since 2000. (use for).
9. the students (listen)to the lecturer.(put in the correct form).
10. water (consist) of hydrogen and oxygen.(correct)

1. We drink coffee every morning. (Ask a question).  

Do we drink coffee every morning?  

2. They travelled to Cairo yesterday. (Negative).    

They did not travel to Cairo yesterday.  

3. He drinks tea in the morning. (Change into passive).    

Tea is drunk by him in the morning.  

4. Ali read a story last week. (ask a question starting with what?).  

What did Ali read last week?  

5. lam cooking dinner at the moment. (Change into passive).    

Dinner is being cooked by me at the moment.  

6. My father came when we (are) eating. (Correct the verb).  

My father came when we were eating.  

7. A thief (enter) my room while I was sleeping. (Correct the verb)  

A thief entered my room while I was sleeping.

8. I have not visited him since 2000. (Use for).  

I have not visited him for 19 years.  

9. The students (listen)to the lecturer. (put in the correct form).  

The students are listening to the lecturer.  

10. Water (consist) of Hydrogen and Oxygen. (correct)

Water consists of hydrogen and oxygen.    

the sentence that best describes the tone of the passage from the radio broadcast compared to the passage from the book is b. the radio broadcast has a more surprised tone.

consider the text evidence: in the passage from the book, the description is more matter-of-fact. it is simply describing the things resembling little grey snakes, but there is no urgency in the description. on the other hand, in the passage from the radio broadcast, there is definetely urgency (you can tell from the expression used, "good heavens", which clearly indicates surprise.)