1. You have to buy a new toothpaste.

2. There is a rainfall in my area.

3. There is a waterfall near my house.

4. Someone killed a passer-by.

5. Let's have a checkout.

6. Let's have a checkin.

7. You need to get a driving license.

8. I grow a lot of tomatoes in my greenhouse.

9. Moles live underground.

10. If they want to increase output from the factory, they'll have to modernize.

11. The inputs for the CD-ROM are at the back of the computer.

- Mai is going to the supermarket to buy toothpaste tonight. 

- There was a rainfall yesterday. 

- I saw a waterfall when i was picking flowers in the forest. 

- A passer-by is buying ice-cream in the park. 

- Please go to the counter and have a checkout. 

- Do you check in this competition? 

- I forgot my driving license at home. 

- I visited a green house with my friend last weekend. 

- We are exploiting underground water: Chúng tôi đang khai thác nước ngầm. 

- We need to develop the output.

- The input of this computer is need repairing. 

Bn học tốt!!