Выбрать правильное слово 1) We are trying to decide (if/whether) to go to the sea in summer or not. 2) Secondary education in Russia is (compulsory/optional). 3) (No one/None) of my schoolmates has applied to a university abr...

Выбрать правильное слово 1) We are trying to decide (if/whether) to go to the sea in summer or not. 2) Secondary education in Russia is (compulsory/optional). 3) (No one/None) of my schoolmates has applied to a university abroad. 4) In this college students have to pay for their (learning/tuition). 5) The supply of food you have may (continue/last) for about a month. 6)  Who can give me advice (if/whether) to do another foreign language? 7)  Sally (mustn’t/ needn’t) worry about going to the shops: it is my turn to do the shopping. 8) I wondered if there were any pupils in the classroom and found out that there were (nobody/none). 9) (Advanced/Advance) technologies are finding their way to schools. 10) I have three mobiles, but (no one/none) is expensive.