已知两圆的半径分别为3cm和5cm，圆心距为9cm，则两圆的公切线有______

春节就要到了，通常你在春节前会和妈妈一起出去购物。请根据下表提供的信息，完成一篇英语短文。请注意要语句连贯，条理清楚，适当发挥。字数60-70字左右，开头已经给出，不计入词数。      

	what  to   buy	where   to    buy
going shopping	some orange juice…	a food shop
	some vegetables and fruit, no sweet snacks	…
	a pretty pink coat	…
	something else…	…
reasons(原因)	buy some… because we like\hate them. be good \ bad for health…
	look for a pink coat this year because it matches…

My mother and I usually go shopping together for Chinese New Year.
We buy something to drink and eat in a food shop. _____________________________
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