The man stopped from time to time_______whether he was being followed.
As a film star she was a success,but as a wife she was ________failure,so their marriage ended in ________failure.
—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.