----He thinks that girls are smarter than boys when it comes to learning English. ----But two years ago he thought_______.
______ money, his parents couldn’t send him to university.
It’s very dangerous to _______ these viruses without any protection.
My father is always strict _______ me, so he was very angry _______ my fault on this matter.
--Would you mind if I opened the window? -- ________. In fact, I was going to suggest you _______ it.
It’s _______ thrill to have ______ ten-year research project completed with the desired result.