______ of the earth’s surface ______ covered with water. A Two-third; is B Two-third; are C Two-thirds; is D Two-thirds; are
Don’t use words, expressions or phrases _____ only to people with specific knowledge.
Quite a few people used to believe that disaster _____ if a mirror was broken.
In order to gain a bigger share in the international market, many state-run companies are striving _____ their products more competitive.
Fishing is his favorite hobby, and _____.
I really appreciate _____ to relax with you on this nice island.