You must be careful when you swim the lake.

He succeeded in gaining a gold medal in Beijing Olimpics and all his efforts _____ in the end.

.He simply repeated this year’s work. He’sthe sort of boy who _____ to anyone whatever failures he’a had in whatever hedoes.

If it is quite _________to you, I will visit you next Tuesday.[ ]

The September 11 attack has been _____ bythe entire international community.