---Americans ____forks and knives to chopsticks while Chinese people ______use chopsticks.-----Different cultures makes it.
Tony is busy _______ his homework.
——Let’s go to see the action movies. ——_________.
——Who are you _______? —— My mother.
Look! The man ________ under the tree is enjoying the cool.
People are really ______________ on the beach in summer (夏季).