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YLC6 - Review U9+10

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  • I ______ part of the science club for three years.
    am
    have been
    was
  • She ______ interested in ancient history since childhood.
    is
    has been
    was
  • The museum has displayed the dinosaur ________since last year.
    researcher
    archaeologist
    bones
  • I ___________ a fan of astronomy since I watched my first documentary.
    was
    have been
    am
  • In 2010, a team of engineers ___________ a new type of battery.
    was invented
    has invented
    invented
  • The first skeleton of T-rex was _________ in 1902.
    destroyed
    presevered
    discovered
  • The scientist ___________ fascinated by space exploration since childhood.
    was
    has been
    is
  • In 2012, a scientist ___________ a new planet in a distant galaxy.
    has discovered
    discovered
    was discovered
  • In the early 2000s, scientists ___________ a new planet in our solar system.
    discover
    have discovered
    discovered
  • We cannot underestimate the bad effects of _________ change.
    global
    food
    climate
  • ___________ they ___________ (play) soccer in that field?
    DID - USE TO PLAY
  • There ___________ (be) a small park here, but now it’s a parking lot
    USED TO BE
  • In 2010, archaeologists ______ an ancient city in the desert.
    discovered
    has discovered
    was discovered
  • Many years ago, scientists ______ a rare dinosaur fossil in this area.
    dug up
    have dug up
    dig up
  • Since last summer, researchers _____ evidence of a lost civilization.
    have found
    found
    have founded
  • During the late 1990s, a team of researchers ___________ ancient artifacts in the desert.
    dig up
    have dug up
    dug up
  • I ___________ part of the photography club since last year.
    have been
    was
    am
  • We have studied these _________for a long time. These rocks maybe 2 millions years old.
    fossils
    solar flares
    auroras
  • Since last month, engineers ___________a way to make electric cars more efficient.
    found
    have found
    have founded
  • Do you think desert _________ is a big problem?
    rise
    expansion
    increase
  • We ___________ (not eat) spicy food before, but now we enjoy it.
    DIDN'T USE TO EAT
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