This is или these are? my browns children. the childrens doq. the childrens toys. my sisters picture. my parents guitar.

Там где множественное число - these are, где единственное - this is children (дети) -мн.ч. dog (собака) -ед.ч toys (игрушки) - мн.ч picture (картина) - ед.ч guitar (гитара) - ед.ч

Учиться learn - learnt learnt становиться become - became - become уже   already быть   be - was/were - been хорошо well падать  fall -fell - fallen в углу  in the corner давать  give - gave - given возле  near, at класть, ставить put - put -put видеть see -saw - seen слышать  hear - heard - heard  молодой young учиться, узнавать learn - learnt - learnt  многоэтажка - tower-block делать, создавать make - made -made библиотекарь  - librarian терять  lose -lost - lost звонить  ring - rang - rung побеждать, выигрывать win -won -won быть занятым be busy петь  sing -sang - sung делать ошибку  make a mistake стоять  stand - stood - stoodзадайте вопросы к выделенным словам: we write a lot of sentences on the blackboard.   (5)1. who   writes a lot of sentences on the blackboard? 2. do you write a lot of sentences on the blackboard? 3. do you write sentences on the blackboard or in your notebooks? 4. what do you write on the blackboard? 5. we write a lot of sentences on the blackboard, don't we? she   is   reading a newspaper   now. (3)  1. who is reading a newspaper now? 2. what is she reading? 3. what is she doing now? i spent   four hours a day on my english before the examination l ast year ? (4)  1. who spent four hours a day on english? 2. what did you do before the exam? 3. when did you spend four hours a day on english?