She was looking for her three nephews , but they were nowhere ______ ,which made her worried .
John, _______ university professor, is considered to be _______ success as ______ expert in the agriculture research.
______ in London, the penniless American wandered on the pavement, ______ to find a job to make a living.
I don’t like noisy jazz._______, I enjoy light music, which sounds soft and gentle.
When you go outing with the children, you must see to ______that they are safe.
The lazy boy _____there doing nothing all the afternoon, but he______ to his boss that he had finished what should be done.