The Ghost of Tanglewood Farm - answers

This happened when I (1)was (be) about fifteen. I (2) was (be) on a camping holiday with my classmate, Martin. We (3) had hired (hire) a boat and (4) were rowing (row) down the River Sark near Greyfriars in Berkshire. 

It was late in the afternoon and we (5) were feeling (feel) tired when we (6) saw (see) a sign saying 'Tanglewood Farm, campers welcome'. So we (7)decided  (decide) to take a look as we (8)  needed (need) somewhere to put up our tent that night. 

We (9) walked (walk) through the woods a little way and (10) saw (see) an old house in a clearing. It seemed to be ruined but as we (11) approached ( approach)  a man (12) came  (come) out. We (13) asked (ask) him if it (14) was (be) Tanglewood Farm. He said it was, and that we were very welcome to put up our tent on the river bank. So we (15) walked (walk) off, (16) put up (put up) the tent, and when the sun (17) went /  had gone (go) down, we (18) cooked (cook) ourselves some dinner. 

I suppose it was about nine o'clock and we (19) had just turned (turn in*) for the night when I (20) heard  (hear) a noise outside. I looked out and (21)  saw (see) an owl flying past and (22)  assumed (assume) that this is what(23) had made (make) the noise. However, a few minutes later I (24) heard (hear) a noise again. We were pretty scared but I decided to take a look around. I (25) went (go) down to the river and there, standing in the water was a dark, ghostly figure. My heart (26) was thumping (thump) so loudly I could almost hear it but I didn’t run away.  I looked closer. It was the man we (27) had seen (see) at the house earlier in the day. I was just about to say something when he just disappeared into thin air!

I later (28) learned (learn) that the man who (29) had owned (own) the house many years before (30) lost / had lost (lose) all his money and (31)  committed / had committed (commit suicide) by (32) drowning (drown) himself in the river.