According to the latest research, getting enough sleep is _____ to maintaining good health and reducing stress.
He had no time to get his watch _______ in the nearest shop.
The boss left the office angrily because of ______ his men said then.
The protesters _______ the meeting by singing and shouting.
The man in black is _______ my lifeguard. He is also my close friend.
_____ you pass me the plate on the table?