The two strangers have been talking in the park for a long time as though they ______old friends.
2. Born in 1970 to Chinese parents, Sara Chen grew up in the United States and was ______ influenced by the different cultures around him.
3. Remember, Peter, when you learned to drive a car? ______ you drove more, you got better and better. It’s the same with Chinese study.
4. It used to ______ that humans and animals were different and had little in common.
5. The day breaks, _______ the birds are singing.
6. _________, I attended the meeting instead of him last week.