选词填空。
(1) The pumpkin is ___________ than the apple. ( heavy, heavier )
(2) Jim is 150cm. Ben is 155cm. So Ben is 5cm ____________ than Jim. (tall, taller )
(3) I’m as ____________ as my brother(short, shorter). But he’s __________than me. (fat, fatter )
(4) My birthday’s ______________ the 3rd of December. (in, on )
Is your birthday ____________ December, too ? (in, on )