【单选题】
Some universities offer free, non-credit MOOCs __________to anyone in the world.
【单选题】
____ native to North America, corn has now spread all over the world.
【单选题】
No one would have time to read or listen to an account of everything ____going on in the world.
【单选题】
_____native to North America, corn has now spread all over the world.
【单选题】
6.English is widely used ______ travelersand business people all over the world.
【单选题】
A: Unbelievable! I have failed the driving test again! B: [填空]. This is not the end of the world.
【单选题】
By the end of last month, she ____ over five hundred letters of congratulation from different parts of the world.
【单选题】
Mary Kingsley believed that Africans could learn technology____________ and would finally move into the modern world.
【单选题】
By the end of last month, she _____ over five hundred letters of congratulation from different parts of the world.
【单选题】
China hosted the Olympic Games in 2008, thus _____ her dream to be recognized as one of the greatest nations in the world.