1.The police are searching the town for Mr. Smith, who they think is ________ to the murder.

A. concerned         B. linked                  C. united                  D. mixed

2. Although this medicine can cure you _____ your illness, it has a side effect _____ you.

A. for; in            B. for; on                 C. of; on                  D. of; at

3. She was so __________ in her job that she didn’t notice anybody enter the office.

A. attracted           B. absorbed              C. drawn                  D. concentrated