1) This is a spy (Это шпион) These are spies.
2) That is not a queen (Это не королева). Those are not queens.
3) It's a sheep (Это овца). They're sheep.
4) Is that a man? (Это мужчина?) Are those the men?
5) That blouse was made of silk (Та блузка сделана из шелка). Those blouses were made of silk.
6) This boy has a good coat (У этого мальчика хорошее пальто). Первый вариант: This boy has good coats (У этого мальчика хорошие пальто). Второй: These boys have good coats (У этих мальчиков хорошие пальто)
7) It was a difficult question to answer. (На этот вопрос тяжело было ответить). They were difficult questions to answer.
8) Put this knife on that table (Положи этот нож на тот стол). Put these knives on that table.
9) I heard her voice (Я слышал её голос). I heard their voices.
10) This story will be a good one. (Этот рассказ будет хорошим). These stories will be good ones.