I watched the plane go higher and higher until I lost _____ of it.
20.If you are unable to attend the interview, for __________reason, you should inform us immediately.
19. You should write it in a style which is__________to your subject.
18.From the look on his face , I knew that the end had come, one way or_________.
17. It’s a pity that you________leave so soon. It’s been so nice having you here.
16. — Where is your new home now? —In the new developed zone. But I_____downtown for five years.