toe the line – to do what you are ordered or expected to do.

Not everyone was happy with the plan, but most of us toed the line.

Usage notes: sometimes used with a noun describing whose orders are being followed:

They promised to toe the party line and vote with the leadership.

This website has been posted for teaching English Grammar and Vocabulary through video lessons and example sentences showing how to use these grammar points and words in a sentence with the meaning in the authantic examples.