Ex 2: Choose the best answer. 1. This book is (you) ____. 2. The ball is (I) ____. 3. The blue car is (we) ____. 4. The ring is (she) ____. 5. We met Paul and Jane last night. This house is (they) ____. 6. The luggage is (he) ____. 7. The pictures are (she) ____. 8. In our garden is a bird. The nest is (it) ____. 9. This cat is (we) ____. 10.This was not my fault. It was (you) ____. Ex 3: Rewrite the sentences 1.How far is it from Ha Noi to HCM city? What is the ………………………………………………… 2.This is my ruler This ruler is ……………………………………………… 3.Drink water or you feel thirsty If you ………………………………………… 4.Study hard and you pass the exam If you ……………………………………… 5.People will use wind power in the future. Wind power........................................................................... 6. We will use sources of energy more effectively for our future. ->Sources of energy______________________________________ 7. We will solve the problem of energy shortage by using solar energy. -> The problem of energy shortage ________________________________ 8. They will replace coal by another renewable source. -> Coal____________________________________________ 9.They will use flying car to travel form place to another place.. => Flying cars _________________________________________ 10.Read books and you feel useful If you