1-C. Suddenly, the kitchen door opened, and his father was standing there.Suddenly, the kitchen door opened, and his father was standing there.
突然、台所のドアが開きました、そして、彼の父は、そこに立っていました。
2-C. Sometimes it's unsafe for cyclists to stay in the bicycle lanes because there are obstructions in the lane, such as parked cars or garbage trucks, so the cyclist is forced to suddenly ride out into traffic.Sometimes it's unsafe for cyclists to stay in the bicycle lanes because there are obstructions in the lane, such as parked cars or garbage trucks, so the cyclist is forced to suddenly ride out into traffic.
3-C. But suddenly, my friend told me she couldn't go.But suddenly, my friend told me she couldn't go.
しかし、突然、私の友人は、私に言った、彼女が行くことができなかった(時制の一致)とダヨ。
4-C. Anyway, I think it went pretty well, except for the end, when she suddenly jumped up and ran for her train.Anyway, I think it went pretty well, except for the end, when she suddenly jumped up and ran for her train.
5-C. Suddenly I noticed the time, and I had to run to catch the train in order to get home in time to help my mother make dinner.Suddenly I noticed the time, and I had to run to catch the train in order to get home in time to help my mother make dinner.
6-C. Suddenly, a van came up from behind me.Suddenly, a van came up from behind me.
突然、バンが来ました、私の後ろからダヨ。
7-C. And that's when a van suddenly came into the intersection from the far side.And that's when a van suddenly came into the intersection from the far side.