--- Alex, did you find the old house that you used to live in?--- Yes, but with much difficulty, for my hometown has _____ changed over these years.
Everyone except Tom and Jim ________ the film twice.
Lucy had few close friends. So she didn’t know ________ about the trouble.
--- Where is Mr. Smith? --- He ________ Guangzhou. He ________ there for a week.
---Your father’s never been to other countries, has he? --- ________. He plans to go abroad for a second time.
--- What do you think of my answer to the questions? --- Sorry. I ________ about something else.