Fill in the gap with the correct verb (заполни пропуск подходящим глаголом)

1. I … really slim, so when I started school I was worried about PE.
a. had never been b. have never been c. has never been. d.have never be
2. Western S … together since 1985. They are really popular.
a. had been playing b. have been playing c. has been playing d. have played
3. Long ago Lake Baikal … famous for the purity of its water.
a. became b. had become c. become d. has become