①不知不觉 ____ ____ ____ ____
②源源不断 ____ ____ ____ ____
③暖风徐徐 ____ ____ ____ ____
分解因式:(x+2)(x+4)+x2﹣4=____.
—Nick, _______ to meet me at the bus station. I'll wait for you there.
—OK, no problem.