Edwin Hubble (1889–1953), an American astronomer,
_____galaxies through a telescope.
observed
Marco works as a___ at the University of Alaska. PHYSICS
physicist
My computer / crash / while / I / download / a song.
My computer crashed while I was downloading a song.
Broadband Internet didn’t use to be / weren’t so
popular in the 1980s.
didn’t use to be
She___for her bag and took out the phone.
We____home late in the afternoon.
A asked
B arrived
C reached
C reached
Last month the scientists____ specimens of
some sea spiders from Antarctica.
collected
We all tried to find the best___ to the problem. SOLVE
solution
Tom / lose / his smartphone / when / he / run / in the
park.
Tom lost his smartphone when he was running in the park.
Did your grandparents use to buy / buy a black and
white television in the 1960s?
buy
They haven’t published their research__yet.
How much____do we need to print the documents?
A paper
B report
C ink
A paper
Make sure you____notes when we are at
the museum.
take
A___ is someone who works to protect
plants and animals. CONSERVE
conservationist
The fi rst international Internet chat / take place / in
February 1989
The first international Internet chat took place in February 1989.
We did / used to do a lot of exercises last weekend.
did
The radio has warned of___temperatures today.
Cook the pasta in___water for about 10 minutes.
boiling
Do you know who___ the electric guitar?
invented
Take_____of your desk before you buy
a new computer screen. MEASURE
measurements
It / be / so hot yesterday. The temperature / rise / to
38 degrees Celsius.
It was so hot yesterday. The temperature rose to 38 degrees Celsius.
M y brother used to spend / was spending a few
hours a day online.
used to spend
I can’t believe you’ve bought a desktop____
To be a___scientist you have to be good at maths.
computer
This month two teams of archaeology students
____ research in South Africa.
are doing
The cost of space____is very high.
EXPLORE
exploration
I / wait / for the photos from Sandra / last night /
but / she / not / send / me any.
I was waiting for the photos from Sandra last night but she didn’t send me any.
Did they use to use / Did they use GPS when they
were climbing in the Alps?
Did they use
As_____
as they discovered the cave, they started
exploring it.
They reached the top too____
waiting for the sunrise.
soon