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6. Measures have been taken to prevent accidents, but much ______ for more improvement.
A. remains to be done B. is remained to do
C. remains to do D. is remained to be done
查看习题详情和答案>>Measures have been taken to prevent accidents, but much ______ for more improvement.
A. remains to be done B. is remained to do
C. remains to do D. is remained to be done
查看习题详情和答案>>Measures have been taken to prevent accidents, but much ______ for more improvement.
A. remains to be done B. is remained to do
C. remains to do D. is remained to be done
查看习题详情和答案>>
6. Measures have been taken to prevent accidents, but much ______ for more improvement.
| A．remains to be done | B．is remained to do |
| C．remains to do | D．is remained to be done |
Measures have been taken to prevent the accidents, but much _____ for more improvement.
| A．remains to be done | B．is remained to do |
| C．remains to do | D．is remaining to be done |