题目内容
20、The universe began with the Big Bang 13．7 billion years ago, with everything___ in space smaller than a grain of sand．
A．started B．starting
C．to start D．to be started
试题答案
20、B
The universe began with the Big Bang 13．7 billion years ago, with everything___ in space smaller than a grain of sand．
A．started B．starting
C．to start D．to be started
查看习题详情和答案>>The universe began with the Big Bang 13．7 billion years ago, with everything___ in space smaller than a grain of sand．
A．started B．starting
C．to start D．to be started
查看习题详情和答案>>
The universe began with the Big Bang 13.7 billion years ago, with everything___ in space smaller than a grain of sand.
| A．started | B．starting | C．to start | D．to be started |