careful when you cross the street.
_______ you don’t stay out too late, you may go to the party. But remember to be back here no later than 11:30 pm.
Unfortunately, when I dropped in, Dr. Green ______, so we only had time for a few words.
The animal makes a strange sound, slightly ______ the bark of a dog.
You got back so late and you didn’t even give me a proper reason _______ you hadn’t called me! I’m very unhappy with you.
There was a big dog ______ in front of Mr. Hill’s house, so David didn’t dare to go near it.