sit in for (someone)

Другие идиомы:

• sit up and take notice
• sit in on (something)
• sit-in
• sit on the fence
• sit through (something)
• sit well with (someone)
• sit (something) out
• sit up with (someone)
• sit tight
• sit right
• sit at (someone's) feet
• sit idly by
• sit back and let (something) happen
• sit on one's hands
• sit on (something)