She cared more about her students than her own health. That’s why two years passed _____ she was treated for breast cancer.
Now the world’s attention ______ the stocking markets, as they have great influence in the world’s economy.
Shopping online can save much time as you _______ go to a shop or walk around crowded shopping centers.
___ there are living creatures in the outer space as those on Earth hasn’t been proved until now.
With so many orphans _______, the charity organization calls for more donations.
Welcome to the Science Museum, everyone! This stone axe _______ in South Africa and experts can’t be exactly sure about its use.