20. _______, English is one of the most important subjects.
A.It is known to all that | B.As is known to all that |
C.As we know | D.As it is known to all |
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20. _______, English is one of the most important subjects.
A.It is known to all that | B.As is known to all that |
C.As we know | D.As it is known to all |