— I am afraid I can't help you with your project. I ________ a model these days.
— It doesn't matter. I will finish it by myself.
A:make
B:will be making
C:am making
D:have made
有关燃烧和灭火的说法正确的是( )
先化简,再求值: x2−2x+1x2+x ÷(1﹣ 2x+1 ),其中x= 3 .