The farmers were working ... the field when we came.

a. on

b. in

c. at

2. The children ran.... the hill to see the sunset

a. on

b. to

c. up

3. There used to be a huge old banyan tree ... the entrance of my village.

a. at

b. in

c. on

4. Tourists enjoy traveling boat along the Mekong river

a. on

b. in

5. Phong sometimes stays his uncle's farm. b. in

c. by

a. on

c. at

6. Ba and Tam usually go fishing weekends.

a. on

b. in

c. from

c. at

7. The students will visit the capital... summer.

a. on

b. in

8. They heard a very strange noise midnight

a. on

b. in

c. at

9. Our little brother took a long nap from 2p.m 4p.m

a. till

b. up to

c. from

10. The competitions will take place. ... 8am and 2p.m

a. from b

b. between

c. up to

11. The children came back home... 8p.m

a. after

b. till

c. up to

12. She talked... an hour to persuade her parents.

a. in

b. for

c. from