Make sure the gas is turned off after a bath, which would _______ cause danger. 

The conference was _______ fixed for the 10th, August, but later the unexpected landslide(泥石流) in Zhouqu in Gansu province, made us put it off.

--- I __________ agree with what he said. Actually I feel what he said is much to the point and makes good sense. --- Yes, I think so.

His report was so exciting that it was      interrupted by applause(鼓掌).

Our bodies are strengthened by taking exercise,______ our minds developed by learning.