Hiking by oneself can be _______ and good for health. It may also be good for_______ training.
The hard part in our life is not making the decision but living with .
---- Remember the first time you ____ her?----Sure, she was singing on the stage.
Left ____ in the reading room alone quite by accident, the boy felt nervous.
I _____ to my cousin’s birthday party last night, but I was not available.
It was a pity that the policeman failed to find such a person ____ had beendescribed by the witness.