4. Complete the sentences with the correct verb forms. 1. Mr. Brown for the day when the phone call came. A. has already left B. already leaves C. already lef D. had already left 2. Ms. Hoa the package when she discovered the address was wrong. A. had mailed B. has mailed C. will mail D. would mail 3. We in the sitting-room for hours when he finally came home. A. had been sitting B. have sat C. will be sitting D. sat 4. Before the cancellation letter arrived, they the goods. A. send B. had sent C. have sent D. had been sending 5. The accident happened when one of the workers the chemical tank. A. was cleaning B. were cleaning C. cleaned D. had been cleaning 6. When I left the office, the building was empty because everyone A. was leaving B. had been leaving C. were leaving D. had left 7. When the company went public, Mr. Smith it for four years. A. is running B. was running C. had been running D. ran 8. She fainted because she for 10 miles without a rest. A. run B. had been running C. was running D. had run 9. Mr. Hung a trip to the islands until he realized it was hurricane season. A. planned B. has planned C. had planned D. had been planning 10. Last night I had dinner with the Browns, who for Sonny for a couple of years in the 90s, and then over here to set up his own business. A. was working / was coming B. was working / came C. worked / came D. worked / was coming