The days are gone _____ physical strength was all youneeded to make a living[ ]

_________from the top of the tower,the south foot of the mountain is a sea of trees [ ]

The real secret to successful learning lies in students ______ an interest in what they are doing.

I don’t know if Aunt Li these“stay-home children”tomorrow morning.— If I her,I would come earlier.

I will perform _______ the piano in the concert to be held tonight.