A frog ( ) feet.Three frogs ( )twelve feet空格里填什么啊.拜托了!亲们!

a frog has four feet,three frogs have twelve feet.为什么have,has这样填? A frog ( ) feet.Three frogs ( )twelve feet空格里填什么啊.拜托了!亲们! i wish i was a frog, give birth to a frog是什麽意思most likely to give birth to a frog a frog in south america is the ```` 为什么不是a frog of south america is the ```` frog.prince和frog. It came to a well.In the well,it hear a frog.这里为什么可以省去frog's vioce如果加上frog's vioce,需不需要去掉a? a pirnce or a frog是什么意思啊这句英文 a handsome frog sits on the left of 英语翻译lead the prince to become a frog对吗? Carzy-Frog frog是什么 FROG怎么样 frog是什么意思? make a frog jump是什么意思?China is trying to make a frog jump in building its social security system by further extending the old-age pension program to cover all residents.其中,make a frog jump该如何理解? It came to a well.In the well,it hear a frog.这里为什么可以省去frog's vioce?如果加上frog's vioce,还需不需要去掉a? 一道英语奥术题a frog falls into a well.the well is 28m depth,the frog climbs 4m and gets down 2m,How many days can the frog get out of the well 9年级英语选哪个帮帮忙（说明理由啊）谢谢Thre are many people downstairs .WHAT do you think_________-Thre are many people downstairs .WHAT do you think_________-? A to happen B happening C is happened D has happened9