题目内容
So quickly ____________ is a possibility today may be a reality tomorrow.
| A.are science and technology advancing that |
| B.science and technology advancing are that |
| C.are science and technology advancing that what |
| D.science and technology advancing what that |
C
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We are so happy to see the problem _______ so quickly.
| A.settled | B.having been settled | C.be settled | D.settling |