The most important thing ______we should think about is ______ we should do next.
A:what; that
B:that;that
C:that;what
D:which;what
读课文《假如》填上适当的标点符号。
①我要给窗前的小树画一个红红的太阳____让小树在冬天也能快活地成长____不会在寒冷的北风里缩着身子____轻轻叹息____
②假如我有一枝马良的神笔____
例如983-296,精确计算983-296=687,用整十或整百数估算980-300=680
965-196,精确计算965-196=____,用整十或整百数估算____-____=____
配平下列化学方程式① (____ )Al+(____ )HCl-(____ )AlCl3+(____ )H2② (____ )Al+(____ )Fe3O4-(____ )Fe+(____ )Al2O3 ③(____ ) N2+(____ )H2-(____ )NH3④ (____ )C2H2+(____ )O2-(____ )H2O+(____ )CO2
— Yes, I like kids and I really hope to work _________ a teacher.