on over the employment contract or certificate of employment (including the letter of dispatch from a multinational firm)?

  The employment contract or employment certificate (including the multinational company dispatch letter) should include the working hours, working place, working content, salary, post, signature and stamp page. Any general employer applies for the work permit should provide the employment contract. For the usage of the employment certificate, please refer to the remarks on the contract page-10 of ([2017] No. 36 Document Issued by the State Bureau of Foreign Experts Affairs).

12. Which countries and regions are using English as their mother tongue or primary language?

 Ascension Island, Australia, Bermudas, British Antarctic Territory, British Indian Ocean Territory, Canada, Falkland Islands (Malvinas), Gibraltar, Guernsey, Guyana (formerly British Guyana) , Ireland, Isle of Man (British Irish Sea Territory), Jersey, New Zealand, Pitcairn Islands, Singapore, South Africa, Akrotiri of Cyprus and the British region of Dhekelia, South Georgia and South Sang Wichi Islands, St. Helena, Tristan da Cunha, United Kingdom, United States, US Virgin Islands, Antigua and Barbuda, Anguilla, Bahamas, Barbados, British Virgin Islands, British Cayman Islands, Dominica, Grenada, Saint Vincent and the Grenadines, Jamaica, Montserrat, Saint Kitts and Nevis, Saint Lucia, Saint Vincent, Trinidad and Tobago, Turks and Caicos Islands.