On the ground _______ the man, his face as white as a sheet of paper.
When you read the book, you’d better make a mark _____ you have any questions.
The child tiptoed quietly to the bird. ______ into the forest when he was about to catch it.
He _______ busy yesterday, or he _______ you with your experiment.
A teacher of English and class teacher _______ us something about volunteer workers.
It every day so far this month. I can't tell you if it tomorrow.