Ответ:

Task 1.

1.True(+).

2. False(-).

3. True(+).

4. NG(Not given).

Task 2.

1.MSF was organized by French doctors, in Nigeria, 1971.

2.Dr Doug Wills has seen experemely work in Africa.

3. 70 countries. (полный ответ сам напишешь).