Put the verbs in brackets into the past continuous. 1 we (plan) to go to the zoo, but we stayed home instaed. 2 jackie (take) notes dring the lesson. 3 the student (work) hard because they wanted a good mark in the exam. 4 what (you/do) at 6 o"clock iast night? 5 he (play) with his nephews all day saturday.

1was planning 2 was taking 3 was working 4 were you doing 5 was playing

1. some helping in exchange of information is provided by s cientific conferences.2. he demonstrates some insisting on addressing this issue.3. being engaged in collecting material for a new article is my occupation now.4. arising of this error from the use of approximate methods occurs often. 5. aiming at obtaining accurate data on this issue - that is what the efforts of many scientists are focused on.6. in this connection, other studies in this field are worth mentioning.7. in this article, suggesting the usage of the same principle when considering more complex systems is done by the author.8. preventing a new series of experiments from being conducted  is caused by the l ack of accurate data.9. trying to answer this question has been performed by scientists for a long time.10.  the reason for some differing in providing more accurate data lies in this method.