Read the summary again. Put the events in the order they happened p 58 ex3 .The dinosaur appeared​

1. Man keeps cattle for meat and dairy purposes. Animals raised for milk typically require more daily care than those raised for meat.
2. Human milk is lower in proteins and minerals than that of cows and goats.
3. Laboratory test shows that today’s milk contains less foreign materials than that delivered yesterday.
4. The presence of more iron and copper in milk is undesirable as they are able to destroy some chemical compounds especially the ones referred to vitamins.
5. Senior citizens, especially the ones that consume small amounts of dairy products, may develop calcium deficiency.
6. Calcium deficiency in children and young people leads to retarded growth, while calcium deficiency in those over middle age promotes bone fragility and dental tissue decay.
7. A lot of modem diets include various dairy products, especially low fat ones.
8. Of all animals producing milk cow can be considered the principle one.
9. The development of skeleton is as enhanced by adequate milk consumption as that of brain.

1) show - Present Simple Active
2) was arrested  - Past Simple Passive
3) was  - Past Simple Active
4) couldn't be sent  - Past Simple Passive
5) have  - Present Simple Active
6) believe  - Present Simple Active
7) are - Present Simple Active
8) are combined  - Present Simple Passive
9) has gone  - Present Perfect Active
10) explane  - Present Simple Active
11) agrees  - Present Simple Active
12)  to be - Infinitive
13) do and dive - Present Simple Active
14) think   - Present Simple Active
15) are to be taken   - Present Simple Passive
16) produced  - Past Simple Active
17) say - Present Simple Active
18) let them do  - Present Simple Active + Infinitive
19) want  - Present Simple Active
20) get   - Present Simple Active
21) can't dissolve  - Present Simple Active
22) makes them believe  - Present Simple Active + infinitive
23) is  - Present Simple Active
24) to stop - infinitive
25) will increase - Future Simple Active
26) should fell - (+modal verb) Present Simple Active
27) are cared  - Present Simple Passive