You can climb with ease——as 1 have done many a dine —several of its mountains one day.
A.You can climb its mountains several times without difficulty in one day——as once a time. B.You can climb its mountains several times without difficulty in one day——as I have done many times. C.You can climb its several mountains without difficulty in one day一as I have done many times. D.You can climb its several mountains without difficulty in one day——as I have done once a time.正确答案C