5предложений с предлогов who.5 предложений с предлогом which

if i would have chance to volunteer, i would like to volunteer in the country, which needs it the most. i i would like to go to africa. i want to help children and women- since they are the most vulnerable.

i am also interested in different cultures, and i would not experience it otherwise.  what could be more different, then africa?

i also understand, that besides helping others i would contribute to my career. i am thinking about medical field, and helping others will help me to see if i am strong enough to go this path. 

what could be better, then helping somebody, who needs it the most?

p.s.

если вам нужна , что бы перевести мой текст выставите эту просьбу, как новое . с уважением , маша

the present perfect continuous

2.-yes,they have living in  at the moment for 2 years

3. he has been waiting for mary more than an hour.

4. they have benn sitting in the garden since dinner time

5. he has been playing tennis since 10 a.m.

6. i have benn learning spanish for 5 years.

7. he has been working for the same company since he left school.