—I’m sorry I stepped outside for a smoke. I was very tired. —There is no______ for this while you are on duty.
--- What’s reported in the news? --- The earthquake yesterday is said _______ more than 5 hundred people.
If he ___ me his telephone number yesterday, I ___ able to ring him up now.
The internet has made ____ possible for everyone to talk with friends miles away.
The _________ at the military academy is so rigid that students can hardly bear it.
I remembered _____ the door before I left the office, but forgot to turn off the lights.