IX.
1)a 2) a 3)b 4) c 5)b 6)a
X
1) F 2)F 3)T 4)T 5) F 6)T
XI
1. Be calm or you’ll make a wrong decision.
→ If you are not calm, you'll make a wrong decision.
2. A great poet wrote these wonderful poems.
→ These wonderful poems were written by a great poet.
3. Jane didn’t go fishing yesterday because it rained heavily.
→ Because of the heavy rain, Jane didn't go fishing.
4. Khue Van pavilion is used as a symbol of Hanoi by Vietnamese people.
→ Vietnamese people use Khue Van pavilion as a symbol of Hanoi
5. His idea is different from mine.
→ His idea is not the same as me.
6. These Dong Ho paintings are more expensive than those modern paintings.
→ Those modern paintings are not as expensive as these Dong Ho paintings.
7. What is your favourite food?
→ What food do you like?
8. Chefs use these machines to mix the ingredients.
→ These machines are used by chefs to mix the ingredients