How many country on all the world pls say easily ..;..

How many country on all the world pls say easily ..;.. how many communist country in the world? 填空练习:介词Students should pay attention ______ how much progress they make instead of how much time they spend on study.The reason ______ the proliferation of pollution varies from country to country.Scientists have presented many possible s How many bottles there on the how many people are on earth? How many medals did our country get in the last Olympic How many medals did our country get in the last Olympic Ganme how many country are there in the UN?哪里错了? How many people are there in the county?的同义句是( )the( )of the country? How many（）do you know in our country?cities city citys选择 how many years will you have completed before traveling to your host country How many traffic lights are there in every day country怎么回答 How many basketball player can be on the court how many apples are there on the tree?意思是什么 How many lessons ___your classmate ____(have)on Monday? how many books are there on the desk?怎么回答? There are therephotos on the wall.用how many提问 how many apple are there on de tree?怎么回答