What do you use it for?We use it to study English.后一句中为什么是use to,而不是use for studing...后半句中可以把 to study ..换成use for studing吗?

What do you use? What do you use it _______?I use it _____ keep my pens and pencils. It is no use doing what you like;you have got to like what you do. What do you use the pencil-box ()?We use it () keep pencils and rulers. It is yours, but others use it more than you do . What is it? What thing only belongs to you,but other people use it more than you do What belongs to you but others use it more than you do? What belongs to you but others use it more than you do?尽快 It is no use doing what you like; you have got to like what you do!是谁的名言~ Would you tell me _____this mobile phone?sure,it's very easyA.what to do B.what to do with C.how to use D.what to use what do you use that room（） please ans wiht englishwhat do you use the internet for how often do you use it what sites do oyou recommend ,and why? What do you throw out when you want to use it,but take in when you don't want to use it what do you throw out when you want to use it,but take in when you don’t want to use it?怎么回答 Use your head ,and you will find _ it next A what to do B what can you do C how to doD how can you do How do you understand sentence:it is no use doing what you like:you have got to like what you do. What do you use the computer for?同义句What do you use the computer____　____? What do you use it for?We use it to study English.后一句中为什么是use to,而不是use for studing...后半句中可以把 to study ..换成use for studing吗?