question: after some 20 minutes we arrive to olympos. the village clings to a mountain slope, and the neighbouring mountain peaks are dramatically shrouded in clouds.
Capitalize this past sentence correctly.
A: After some 20 minutes we arrive to Olympos. The village clings to a mountain slope, and the neighbouring mountain peaks are dramatically shrouded in clouds.

question: it occurs in exactly eight places.
Capitalize this past sentence correctly.
A: It occurs in exactly EIGHT places.

question: did someone email you a qch file and you're not sure how to open it? maybe you have found a qch file on your computer and wondering what it's for? windows might tell you that you can't open it, or in the worst case, you might encounter a qch file related error message.
Capitalize this past sentence correctly.
A: Did someone email you a QCH file and you're not sure how to open it? Maybe you have found a QCH file on your computer and wondering what it's for? Windows might tell you that you can't open it, or in the worst case, you might encounter a QCH file related error message.