32. This disaster ______ that people had no knowledge of first aid and they hadn’t known how to protect them-selves in face of danger.
The boss____________ the worker how to do it, or the accident couldn't have happened.
Don't be joking. It's time to____________ your business.
It may not rain, but you had better take an umbrella__________.
I'd like to be a professional singer, but I don't think I've got ________.
How different is the impression produced by_____________ today!