парные хромосомы,каждая из которых достается организму от одного из родителей

В чём секрет долголетия и популярности книги о Робинзоне Крузо?

1.Put the verbs in brackets into the passive or active in an appropriate tense.

   Last night an american tourist (1) was found (find) unconscious in front of WA. He (2) ... (take) to hospital but the doctors (3) ... (be) unable so far to detect the cause of his condition. Apparently, he (4) ... (not attack) or (5) ... (mug). He (6) ... (not drink) either. He (7) ... (regain) consciousness this morning and (8) ... (question) now about the incident. His condition (9) ... (describe) as good and he (10) ... (not suffer) from any pain or discomfort. He (11) ... (visit) by the AC later today, who wants to know whether he (12) ... (treat) property.

2.With passive forms.Complete the sentences these prepositions: about, by(x5), in,on(x2), with.

1)The patient was operated on by a famous surgeon from NY.

2)His attention was focussed ... the smallest paintihg in the room.

3)This will be dealt ... immediately ... our complaints department.

4)Chosto`s work has been talked ... a lot and criticised ... some people.

5)The money will be invested ... a new museum.

6)The violun solo,composed ... Tchaikovsky,was played ... real feeling ... the Portuguese violinist.

3.Use the cues to write passive sentences in the past. 

1) the museum/build/glass and metal/a young architect - The museum was built of glass and metal by a young architect.

2) the statue/make/wood/a young sculptor from London - ...

3) the dich/invent/a French chef/and make/six differetn kinds of fruit - ...

4) the roof/repair new tiles/a local builder - ...

5) the journey/make/three-metre boat/two students from Canada - ...

6) the star/discover/a new radio telescope/a French astronomer - ...

7) the plants/spray/a pesticide/the gardener - ...

8) the Taj Mahal/built/marble/a Mogul emperor - ...

как вы думаете какой смысл сегодня вкладывают в слово богатырь

Какой химический характер имеет оксид элемента с порядковым номером 34? Ответ объяснить.

(химический характер оксида-примеры уравнений реакций)