Question 37: I/ as/ a volunteer/ in /2015 /started/ working/
A. I started working as a volunteer in 2015.
B. I started as a volunteer working in 2015.
C. I working started as a volunteer in 2015.
D. I as a volunteer working started in 2015.
Question 38: /in/ volunteer work / taken part /ever/ you/ have/ /?/
A. Have ever you taken part in volunteer work?
B. Have you ever taken part in volunteer work?
C. Have you taken part ever in volunteer work?
D. Have you taken part ever volunteer in work?
Question 39: /by/ keeping/ / clean./ can/ avoid/ You / some diseases/ yourself/./
A. You can keeping some diseases by avoid yourself clean.
B. You can avoid by keeping yourself clean some diseases.
C. You can avoid clean some diseases by keeping yourself.
D. You can avoid some diseases by keeping yourself clean.
Question 40: Vietnam/ because/ beautiful/ I/ it/ is/ love/ very.
A. I love Vietnam because it is beautiful very.
B. I love it beautiful because Vietnam is very.
C. I love Vietnam very because it is beautiful.
D. I love Vietnam because it is very beautiful