The children were warned of not being too_________about things they are not supposed to know.

_______ from toothaches for some time, he had to go to hospital for an examination.

I suggested to my father that we _____ to Shanghai for a holiday this summer, but the expression on his face suggested that he _____ to it.

Make sure the gas is turned off after cooking, whichwould cause danger to ourlife.

My daughter’s birthday is coming. I’m thinking ________the food.