1.我在读书：I'm reading(a book).
2.当读书意思为上学时：I'm a student
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- 1Some of them are often late for school,although their teachers have b___them for it many times
- 2记叙文的语言一般要求( ),来表达作者的（ ）.我真的很急.
- 3know sth 与 know about sth有区别吗,know是及物还是不及物
- 4John ——his father about his failure in the exam.A.dares not tell B.dares not telling C.dare no
- 5比较项目
- 6How will you spend your weekend?同义句是不是what will you do this weekend
- 7i clearly know that she is the best in my mind.这句子中的clearly是副词,副词应该放在动词后呀
- 8已知集合A={x|x²+2tx+t+1=0},B={y|y=-x²,x≠0},若A∩B≠∅,求实数t的取值范围
- 9对任意实数a，b，定义：F(a，b)＝1/2(a+b−|a−b|)，如果函数f(x)＝x2，g(x)＝5/2x+3/2，h（x）=-x+2，那么函数G（x）=F（F（f（x），g（x）），h（x））的最大值等于_．
- 10一艘船航行于两地之间,顺水要用4h,逆水要用5h,已知船在静水中的速度是30km/h,求水流速度.