17. I...from him since he...2 years ago
A.hadn't heard; disappeared B.haven't heard; disappeared C.didn't hear; has disappeared D.will not hear; disappears
18. after the guests..., she...back into the living-room and...off the light
A.left; went; turned B.had left; had gone; turned C.have left; will go; turned D.had left; went; turned
19. by the time you finish cooking, they...their homework
A.will have finished B.will finish C.had finished D.have finished
20. I have heard nothing from him since he...school
A.had left B.left C.has left D.leaves
Loga
Sinh Học lớp 12
