Nowadays, cycling, along with jogging and swimming, （ ） as one of the best all - round forms of exercise.
（A）regard
（B）is regarded
（C）are regarded
（D）regards
Neither Jim nor his cousins （ ） to America, but （ ） of them know the country very well.
（A）have been; all
（B）have been; both
（C）has been; all
（D）has been; both
Many a new measure （ ） put forward to reduce air pollution so far.
（A）have been
（B）has been
（C）was
（D）were
