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According to a widely accepted theory, the universe began ____ a “Big Bang” that threw matter in all directions.
A. with B. from C. in D. by
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According to a widely accepted theory, the universe began ____ a “Big Bang” that threw matter in all directions.
| A.with | B.from | C.in | D.by |
threw matter in all directions.
B. a; the; /
C. the; an; a
D. the; /; a
According to ________ widely accepted theory, ________ universe began with ________ Big Bang that threw matter in all directions.
A.a; the; a
B.a; the;/
C.the; an; a
D.the;/; a
阅读下面的短文,在标有序号的空白处填入一个适当的词,或填入括号中动词的适当形式。
No one knows 1 how the earth began, as it happened so long ago.However, according to a widely 2 (accept)theory, the universe began with a “Big Bang” 3 threw matter in all directions. 4 several billion years afterwards, the earth was still just a cloud of dust.What it was to become was uncertain until between 4.5 and 3.8 billion years ago 5 the dust settled into a solid 6 .The earth became 7 violent that it was not clear whether the shape would last or not.It exploded loudly with fire and rock.They were 8 time to produce carbon, nitrogen, water vapor and other gases, which were 9 (make)the earth’s atmosphere.What is even more important is that as the earth cooled down, water began to appear on its 10 .