Question

8 Rewrite the sentences in perfect continuous tense using time adverbials given in parenthesis. Example I study behavior of wild elephants (lately). Lately I have been studying behavior of wild elephants. 1 John creates amazing visual illusions (recently). 2 Jane Goodall studies chimpanzee (all her adult life). 3 Marie Curie discovered radioactivity and new diagnostic methods in medicine were developed (since). 4 Many myths about use of tool by animals were dispelled (recently). 5 The scientific phenomenon of a deja vu is not fully explained (yet). 6 Scientists are trying explain the phenomenon of sailing stones (for years).​

Answer 1

Відповідь:

1. John has been creating amazing visual illusions recently.

2. Jane Goodall has been studying chimpanzees all her adult life.

3. Marie Curie has discovered radioactivity, and new diagnostic methods in medicine have been developed since.

4. Many myths about the use of tools by animals have been dispelled recently.

5. The scientific phenomenon of deja vu has not been fully explained yet.

6. Scientists have been trying to explain the phenomenon of sailing stones for years.

Пояснення:

Answer 2

1. John has been creating amazing visual illusions recently.
2. Jane Goodall has been studying chimpanzees all her adult life.
3. Marie Curie discovered radioactivity, and new diagnostic methods in medicine have been developed since then.
4. Many myths about the use of tools by animals have been dispelled recently.
5. The scientific phenomenon of déjà vu has not yet been fully explained.
6. Scientists have been trying to explain the phenomenon of sailing stones for years.