关于南极地区和北极地区的叙述，正确的是（ ）
解：∵∠1=∠2
∠2=∠DGF____
∴∠1=∠DGF
∴BD∥CE____
∴∠3+∠C=180°____
又∵∠3=∠4
∴∠4+∠C=180°
∴____∥____ ____
∴∠A=∠F____
— Excuse me, could you please tell me if the sports meeting ______ on time?
— Hard to say. If it ______ tomorrow, we’ll have to put it off.
