I hadn’t seen him for years, but I ______ his voice on the telephone.
A: detected
B: realized
C: C.recognized
D: discovered
                    A: detected
B: realized
C: C.recognized
D: discovered
举一反三
- I hadn’t seen him for years, but I __________________________________ his voice on the telephone. A: realized B: recognized C: heard D: discovered
 - I hadn’t seen him for 16 years, but I ______ him immediately. A: relieved B: recognized C: realized D: recall
 - I hadn’t seen Julia for years, but I _____ her voice on the phone immediately. A: realized B: recognized C: recalled D: recovered
 - I hadn't seen him for 16 years, but I _ him immediately. A: hold up B: inspect C: recognized
 - I hadn’t seen him for 20 years, but I ____ him immediately. A: recognized B: respected C: reminded D: reversed
 
