Giúp mình với! $-$,8. It is necessary / me / buy a digital camera.,$-$,9. Batteries / useful but they / difficult / recycle.,$-$,10. I would like / learn how to drive / car.,$-$,11. Our sister / make / the cake and / give it / her boyfriend two days ago.,$-$,12. I must / learn / more / computers. I want to become / IT technician.,$-$,13. There/ be/ lot / endangered animals, / so/ we/ need/ create /national parks.,$-.$,14. She / often/ take / bus /school, / because/ it/ cheap/ than taking a taxi.,$-$,15. When / she/ go / holiday / Ha Long Bay? $\rightarrow$ Last summer.

Question

Giúp mình với! $->$,8. It is necessary / me / buy a digital camera.,$->$,9. Batteries / useful but they / difficult / recycle.,$->$,10. I would like / learn how to drive / car.,$->$,11. Our sister / make / the cake and / give it / her boyfriend two days ago.,$->$,12. I must / learn / more / computers. I want to become / IT technician.,$->$,13. There/ be/ lot / endangered animals, / so/ we/ need/ create /national parks.,$->.$,14. She / often/ take / bus /school, / because/ it/ cheap/ than taking a taxi.,$->$,15. When / she/ go / holiday / Ha Long Bay? $\rightarrow$ Last summer.

Accepted Answer

Here are the corrected sentences:

8. It is necessary for me to buy a digital camera.
9. Batteries are useful but they are difficult to recycle.
10. I would like to learn how to drive a car.
11. Our sister made the cake and gave it to her boyfriend two days ago.
12. I must learn more about computers. I want to become an IT technician.
13. There are a lot of endangered animals, so we need to create national parks.
14. She often takes the bus to school because it is cheaper than taking a taxi.
15. When did she go on holiday to Ha Long Bay? 
Answer: Last summer.