---I left my handbag on the train, but luckily someone gave it to a railway official.---How unbelievable to get it back! I mean, someone ______ it.
—You are late again,Tom?—Sorry,but I got ________a heavy traffic jam.
John opened the door. There _____ he had never seen before.
Mary didn’t understand made her deskmate so upset all the morning.
Every evening after dinner, if not from work, I will spend some time walking my dog.
I _____ Wang Tao in the street yesterday. We _____ each other since he went to Beijing.