Put the verbs in brackets in the Present Perfect or the Past Simple.
Phillip ____1___ (be) my best friend for over 30 years. We ____2___ (know) each other since we were children. We ____3___ (study) at the same school and _______4_______ (graduate) from the same University of Underground Engineering in our past. Recently, he and his family ___5____ (move) to a house on the same street as me. They ____6___ (live) in an old house near an abandoned mine, and now I`m very glad that they ____7___ (become) my neighbours. For the last 10 years Phillip and I ____8___ (work) for the same engineering company. We _______ ___9____ _______ (just get back) from work. We ____10___ (work) on our current project for 2 years already. So, 2 years ago our company ____11___ (start) the tunnel under the river. It ___12____ (become) the most important thing in our careers as well. Last week we ____13___ (finish) developing the central block and fully ____14___ (pass) the upper adit. During this week we ____15____ (prepare) everything for opening the calotte. So, we ____16___ just (start) to move temporary tunnel support to the upper adit level. We need to be sure that the vault is protected well against falling down. The explosion crew ____17___ (drill) the blast-holes on the low level to extend it to the side-blocks by blasting after the calotte is finished. We ____18___ already (meet) a lot of difficulties while dealing with incoherent ground here, limestone mostly on the upper part and quite solid rock on the lower one. So, we ____19___ (have) the main problem to solve by combining soft and hard rock tunneling techniques. There ___20____ (be) ground water leaks and rock slides as well, but we successfully ____21___ (cope) with this problems using appropriate techologies, adopting our equipment, knowledge and cutting techniques to such changeable ground conditions. We ___22____ also (made) the track gauge wider to make it more stable and tolerate heavier loads. We ___23____ (create) the tunnel project to be inclined not only on the ends of it leading to the daylight. We ___24____ (supposed) our tunnel to be inclined along the whole length of it because our chief engineer ___25____ always (believe) that such feature can make it safer, more stable and perform its features for a longer period.

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