词义辨析。 A) have a look / have a look at 1. Can I _____ the photos of your family? 2. —I have a new pen. —Let me _____ . 3. May I _____ what's on television? B) on one's way back / by the way 4. _____ home, he saw a girl crying. 5. _____ , have you seen John lately?