His remark was considered to be quite ______, because it deepened the gap between two parties and caused more conflicts.
Friends should be_____ about each other’s feelings.
He _____ a Party member last year.
Professor Smith, along with his assistants, _____on the project day and night to meet the deadline.
The Sound of Music is the first English filmI have ever seen.
Air is to us _____ water is to fish.