3
Choose the appropriate phrase to fill in the blanks.
1. Tommy solves any problem in a flash. He is, (
),a mathematical genius.
2. Everyone thinks of me as a self-confident person, but I am, (
), not sure of myself.
3. Correct grammatical errors, (
), in this sentence.
4. Renewable energy is environmentally friendly, but, (
), it is expensive to produce.
a. on the contrary
b. if any
c. after all
d. on the other hand