1. Now we are writing a test on English. Are we writing a test on English now? Are we writing a test on English or Russian now? What are writing now? We are writing a test on English now, aren’t we? Who is writing a test now?2. There are many specialties in our university. Are there many specialties in your university? Are there many or few specialties in your university? How many specialties are there in your university? There are many specialties in our university, aren’t there? Where are many specialities?3. English is an international language. Is English an international language? Is English or Russian an international language? What is an international language? English is an international language, isn\'t it? What kind of language is English?4. Annually thousands of students visit St. Petersburg. Do thousands of students visit St Petersburg annually? Do thousands of students or foreigners visit St Petersburg annually? Who visits St Petersburg annually? Annually thousands of students visit St. Petersburg, don’t they. Where do thousands of students go annually?