After years’ study with the help of Professor Henry Higgins, Eliza was able to________various levels of English usages, such as standard and substandard.
________ you need something, please don't hesitate to let me know.
—Was it 11 o'clock ________ your father came back last night? —Yes, he is always coming back so late.
—I don't mind how you do it ______ you finish the painting on time. —OK, I see.
You seem to have a readymade answer ________ I ask you a question.
Steve was busy clearing the cups and dishes from the table ________ others were playing.