If _____ to look after luggage for someone else, inform the police at once.
The girl was frightened by the thief , and she stood there without ____ speak .
Why did you keep it a secret from me ? I ____ about it .
— You ought to have called her yesterday . — Yes , I know I ____ .
________, the gathering crowd burst into applause.
AIDS is spreading all over the world at shocking speed. Where its dark _______ appears, we see pain, tears and death.