1. I bought new video games months ago.
(Past Simple.a month ago)
2. Are there children toys in the box?
(Present Simple.оборот there is/are)
3. Ann hasn't phoned her parents yet.
(Present Perfect. Yet)
4. His car is more expensive than mine.
(Degrees of comparison. Possessive pronouns)
5. We do morning exercise every morning.
(Present Simple. Every morning)
6. Eighty seven decided by three is twenty nine.
(Numerals)
7. She had shut the door before she left for her work.
(Past Perfect--had shut.
Past Simple-left.
Before.)