EFL students' most noticeable mistake in using the presnt perfct tense and the past tense. how can i explain the differences between them?

there are some mistakes in (1),(2), (3) & (4). how can it change into?
after change into the right anwer, how can i explain the changes?

"Ressell Davies, editor of The Kenneth Williams Diaries, (1) become a freelance writer and broadcaster soon after leaving Cambridge University in 1696. He (2) be a film and television critic of the observer and television critic of the sunday times, and lately has been writing a column about sport for the sunday telegraph. For television and radio, he (3) presented many literary and political features, a history of radio comedy, more than fifty editions of 'what the papers say', sundry jazz documentaries,: but in spite his involvement with Lig Entertainment, particularly in radio, he never quite (4) collide with Williams himself-except in print.