1) Mark always sees the bright side of things. He is . *
pessimistic
optimistic
cheerful
sociable
2) I had felt a sense of when my friends refused to support me. *

betrayal
independence
security
jealousy
3) Teenagers need love, and reassurance from their parents. *

betrayal
encouragement
greed
jealousy
4) Greenpeace works to promote of the dangers that threaten our planet today. *

abuse
liberty
awareness
immigration
5) We got to the cinema late and the film. *

already started
was already started
has already started
had already started
6) My neighbors are very because they make too much noise! *

annoyed
annoying
tempted
tempting
7) She has hair. *

brown long beautiful curly
curly beautiful brown long
beautiful long curly brown
curly brown beautiful long
8) “It’s raining and I don’t want to get wet. I bring an umbrella.” *

ought to
had better
should
shouldn’t
9) continuous efforts of the Japanese government, the overwork culture in this country is still growing. *

unless
as soon as
due to
in spite of
10) They were worried their cat. *

around
of
about
11) They’re so excited going to Australia next summer. *

for
with
about
12) He is old and unpopular. , he has at best only two more years of political life left. *

On the contrary
Furthermore
In addition to this

1) I was lighting a candle when Jim came in.

2) Jack was swimming from 5 to 6 pm yesterday.

3) Sally was drinking tea at 8 am yesterday.

Объяснение по каждому пункту:

1) В данном предложении оба времени, поскольку это предложение по конструкции с when—Past Continuous и Past Simple.
Past Continuous—процесс, а Past Simple—одноразовое действие. Процесс у нас уже есть(was lighting), соответственно вставляем глагол в Past Simple.

2) В этом предложении вставляемся Past Continuous, потому что указан процесс и также тут два указателя времени(с 5 до 6 вечера вчера). Джек плавал с 5 до 6 вечера вчера. С 5 до 6–явно процесс.

3) В этом предложении два указателя времени—at 8 am, yesterday(в 8 часов утра, вчера). А когда два указателя времени—ставим глагол в форме Past Continuous.

Presentation by Ellie Hugo, what are Nazca lines? Hugo These are huge drawings of birds, animals and insects. They were slammed into the ground. ELLIE Why are they called the Nazca lines? Hugo Because they were made by the Naskans. They lived in Peru thousands of years ago. When were the drawings made? Ally They have been made for a thousand years, from about 500 B.C. before 500 AD The Naskans buried the drawings in the sand, and they have not been found for thousands of years. Have you really seen these drawings? Hugo No, I haven't, but I would like to, because I'm sure they are a fantastic sight. From the ground they are not very visible, because they are so big - you need to climb to a height of several hundred meters.