Although he in America for a long time, he’s never regretted his making his mind to return to his own country.
-It’s many years since I saw you last, I __________ you at all. -I wouldn’t have, either, if someone __________ you by the name.
When he looked up, he suddenly found himselfby a group of teenagers,
I really don’t know _________ I had my money stolen.
_________ the problem of land erosion getting more serious, the government is searching for a way to deal with it.
-Mom’s gift? She _______ have chosen a better one for me. -She must be very happy to know it.