We should take care of the blind. It is immoral to them.

Keys _______ used for ______ the doors.

The engines of the ship were out of order and the bad weather ______ the helplessness of the crew at sea.

ike to invite you to a partytomorrow evening– Thank you, but ______ I’ll be free I’muncertain

Choosing the right dictionary depends on ______ you want to use it for.