All ______ has already been done.

A:can be done B:should be done C:that can be done D:what should be done

All that can be done （　）

A:have been done B:have done C:has been done D:has done

All that can be done ______.

A:have been done B:has been done C:have done D:has done

All （ ） has alreadly been done.

A:can be done B:should be done C:that can be done D:what should be done

All （ ） has alreadly been done.

A:can be done B:should be done C:that can be done D:what should be done

All （ ） has alreadly been done.

A:can be done B:should be done C:that can be done D:what should be done