-You look upset. -Yes, this is the first time I________ form home.
Mary is a good girl, but she has some___________. For example, she doesn’t like helping others.
This is the office ________ my parents are visiting now.
The manager of the company asked ________.
—I'm going to travel along the Mekong River next week. —______________.
After working for two hours, I foundimpossible to complete the paper in time.