Ii. complete these sentences with in, on, at : 1. the results of the election were announced o’clock. 2. mobile phones were invented the 20th century. 3. our flight is leaving at 9.30 evening. 4. i can’t read a book bus or a car . 5. we are going to put all our old shelves.
2.at
3. on, in
4.in, in
5.on
2.on
3.in in
4.on in
5.on