作业帮A:______________he?B:He is in Beijing.1.A:________this in English?B:This is a car in English.2.A:______ ______is Kate?B:Kate is twelve.
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A:______________he?B:He is in Beijing.1.A:________this in English?B:This is a car in English.2.A:______ ______is Kate?B:Kate is twelve.
A:______________he?B:He is in Beijing.
1.A:________this in English?B:This is a car in English.
2.A:______ ______is Kate?B:Kate is twelve.
A:______________he?B:He is in Beijing.1.A:________this in English?B:This is a car in English.2.A:______ ______is Kate?B:Kate is twelve.
A:Where is _he?B:He is in Beijing.
1.A:What's this in English?B:This is a car in English.
2.A:How old is Kate?B:Kate is twelve.
Where is
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where is he?
A:______________he?B:He is in Beijing.1.A:________this in English?B:This is a car in English.2.A:______ ______is Kate?B:Kate is twelve.
peter:______________he ride a bicycle linda:NO,but he __________________swim.
把下面的句子改成被动句I invited sally to a party.______________He has finished his homework._________The police will catch the thief.__________They are building that house.__________
用in case,in case of ,in any case,in no case,in that case中任何一个完成下列句子：1、______________he comes,please let me know.2、______________fire,ring the alarm bell.
(a+b).(a-b)
a/b-b/a
a+b>a-b,
a-b>a,a+b
计算a+b/b-a-b/b
-2a(a+b)+b(a+b)
化简|a|+|-b|-|a-b|-|a+b|
化简 |b|-|a|+|a-b|+|a+b|
[(a+b)(a-b)-(a-b)
(a+b)(a-b)-a-b因式分解
化简 |a-b|+|a+b|-|a-b|
因式分解 a(a+b)-b(a-b)
a(a+b)-b(a-b)
A*b/a>A ,那么a/b