______ is known to us all is that the old scientist, for ______ life was hard in the past, still works very hard in his eighties.
As; whom
What; whom
It; whose
As; whose
Native Americans from the southeastern part of ______is now the United States believed that the universe in which they lived was made up of three worlds.
that
which
what
where
She had blonde hair when she was a child, but ______ she got older and older, her hair went darker and darker.
while
when
as
after
When the Internet was created in 1969, only a few people knew about it. That's ______ it came into existence as a secret US government project.
because
when
that
why
It was not until dark ______ he found ______ he thought was the correct way to solve the problem.
what; that
then; that
when; what
that; what
Miss Green took up the story at the point ______ the thief had just made off with the jewels.
where
when
which
in which
I had not believed in falling in love with somebody at first sight ______ I met David on Valentine's Day three years ago.
when
where
after
before
I really don't know ______ I had my money stolen.
when was it that
that it was when
where it was that
it was where
-- Will you go to the history museum tomorrow? -- Sure I will, ____________ it doesn't rain heavily.
as long as
as soon as
in case
even if
______ life pace continues to speed up, we are quickly losing the art of enjoyment.