Нужно в скобках сделать правильную форму

a)They have seen / saw the tower "Baiterek".
b)They saw /have seen the concert last week.
c)They love Rock and Roll.I like/ have liked it all my life.
d)They bought / have bought a lot of interesting books after the concert.
e)They stayed / have stayed in Astana since October.
f)They know / have known each other for 5 years.
g)When did they go / have they gone to Astana?
h)Dmitry went / has gone to Astana 3 months ago.
j)Omar lived / has lived there for 5 months.
ВОТ ПЕРЕВОД
Выберите правильную форму глагола.
a) Они видели / видел башню "Baiterek".
b) Они видели, что / видел концерт на прошлой неделе.
c) Они любят Рок-н-ролл. Мне нравится/, любили все это моя жизнь.
d) Они купили / купили много интересных книг после концерта.
e) Они остались / остались в Астане с октября.
f) Они знают / знали друг друга в течение 5 лет.
g) Когда они шли / они пошли в Астану?
h) Дмитрий пошел / пошел в Астану 3 месяца назад.
j) Омар жил / жил там в течение 5 месяцев.

2.The children ....(play) together every afternoon, but they ....(not play) now.
3. At the moment, David ....(watch) a funny rogram. That's why he ....(laugh).
4.Tamar usually ....(stay) at home in the evenings and ....(watch) T.V., but he ....(not speak) Hebrew with his parents.
5.JONAthan always ....(speak) Hebrew with his friends, but he.......( not speak) Hebrew with his parents.
6.I .....(not do) homework now.I ....(read) a funny book.
7. We ...(walk) to school every morning. We.....(not take) the bus because we.....(live) nearby.
8. At present, scientists.....(try) to find how laughter.......(help) sick people feel better.
9. I....(want) to meet her older brother. He is so funny..
10. They always .....(enjoy) family holidays because they....(have) a lot of fun together.
11.No, she .....(not go) to the park right now because she....( need) to do her homework).
Нужно поставить главголы в скобке в правильной форме, с переводом.

speak via the Internet, watch films, send ( inform) and shop. No wonder that people are becoming (addict) to the Internet.They often spend more time communicating online than talking to their real friends and families. At first glance, the virtual world seems to be a very safe place but it's not like that-it can be as ( danger) as a real world because it's created by people. In the virtual reality you can meet nice and honest people as well as evil and (deceit) ones. That's why we should be careful and (select) while searching for information and meeting new people on the Internet. поставьте в правильную форму слова. помогите очень надо..