Друзья, прошу помощи с заданием по английскому языку, а именно: нужно указать время в котором находится предложение

Ex. 2.
1. I have taken somebody else's suitcase by mistake.
44 Present Perfect Active - have taken
2. The reason for the freight train derailment hasn't been found yet. - Present Perfect Passive - hasn't been found
3. The train was late because a tree had fallen across the line. Past Perfect Active - had fallen
4. The new American turbo-train has covered a 230-mile distance in 3 hours
15 minutes with 4 stops between Boston and New York. - Present Perfect Active (has covered)
5. After Bessemer had invented а new method of steel-making, the price of
steel was greatly reduced. - Past Perfect Active (had invented); Past Simple Passive (was reduced)
6. For many years, railway track has been laid and repaired by hard manual
labor. Present Perfect Passive (has been laid, repaired
7. The train crew was informed that the departure time had been changed. Past Simple Passive - was informed, Present Perfect Passive - had been changed
8. Recently, there has been an increase in rail traffic because many products are
coming in from abroad. Present Perfect Active - has been; Present Continuous Active - are coming
9. The depot at Derby Road had been disused since 1966 when the last steam
locomotives were withdrawn from service. Past Perfect Passive- had been disused; Past Simple Passive - were withdrawn
10. Since 1931, a famous train, the Red Arrow has operated on the
St.Petersburg-Moscow line, leaving Moscow at 23:55 daily and arriving in
Saint Petersburg at 07:55 the next morning and vice versa. Present Perfect Active - has operated
11. By the time the train reached its destination, Paul had made friends with
many of his traveling companions. Past Simple Active - reached; Past Perfect Active - had made
12. We have heard on the radio today that the train fares will be increased in
summertime. Present Perfect Active - have heard; Future Simple Passive - will be increased
13. Until recently, the price difference between the first and second class tickets on
the Spanish Railways had been amounted to 81%. This difference has been
greatly reduced and now first class fare is only 30% more expensive than
second class. Past Perfect Passive - had been amounted; Present Perfect Passive - has been reduced
14. In 1825, there were only 2 locomotives available for use on a public railway;
by the turn of the century, their number had increased to 70,000. Past Perfect Active - had increased
15. Investigators (следователи) were photographing the wreckage from all angles,
and searching for a data recorder that had been aboard the freight train. Past Continuous Active - were photographing and searching; Past Perfect Pasiive - had been aboard

в котором СТОИТ глагол в предложении