1.I can't see a boy ( ride/riding/to ride/rode) a water Buffalo.

--> riding.               @nhw2903

2.It's (interesting/interested/interestingly/interestedly) to travel around Viet Nam

--> interesting

3.Would you mind ( to close/closing/close/closed) the windows?

--> closing

4.She cried (exciting/excitingly/excited/excitedly) when she heard that news.

--> excitingly

5.(Could/Don't /Do/Would)you mind if I smoke?

--> Do

6.My sister likes sweets(making/made/to make/make) from chocolate.

--> made

7.This is the first time Sharron (is seeing/saw/see/has seen) rice paddies.

--> has seen

8.There are lights daily to Ho Chi Minh city(besides/after/except/on) Monday.

--> on

#chúc bạn học tốt ạ !