想一想,看一看.1.There are some girls and some dogs in a house.Ther
想一想,看一看.
1.There are some girls and some dogs in a house.There are 22 heads and 72 feet.How many girls and dogs are there in the room?
___________ girls and ___________ dogs.
2.If you want to boil one egg,it will cost you five minutes and thirty seconds.In that way,how much time do you need to boil five eggs?
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