【简答题】阅读理解。 These are instructions for invisible ink using baking soda. Difficulty: Easy Time required: A few minutes What you need: Baking soda Paper Water Light bulb Paintbrush Measuring cup Purple...
【简答题】用关系代词who, that, which 填空。 ( 提示: 定语从句中关系代词的选用主要由先行词决定。当先行词是表示人的名词或代词时,关系代词一般用who , that , whom;当先行词是表示事物的名词或代词时,关系代词一般用that , which;当先行词既有表示事物的名词或代词,又有表示人的名词或代词时,关系代词一般用that ) A: Karen, did you get any...