_____________ is necessary __________ he trains himself before the Guangzhou Marathon.

How was your holiday — Itcouldn’t have been _____. I just stayed in the hotel because it was rainingmost of the time.

I think I’ve lost my book.— _____.

Where did you meet Alice— It was in the cinema _______ we used to go.

It’s not easy to change habits, ______ with awareness and self-control, it is possible