Is this museum ________ you visited a few days ago

We may think that kids know little about health. _________, they have a high health IQ.

“There is ______ in today’s newspaper, so you needn’t read it,” the father says to his son.

I can’t forget the time _______ the earthquakehappened in Yushu.

g Man used fire for cooking food and also for light, warmth and ________ wild beasts.