Question: The rooms provide access to a shared kitchen TV free WiFi fan and heating and the apartment additionally offers a kitchenette
Please fix the punctuation.
Fixed: [The rooms provide access to a shared kitchen, TV, free Wi-Fi, fan and heating, and the apartment additionally offers a kitchenette.]

Question: A thoracic radiograph chest xray might help to determine whether there is enlargement of the heart or any other evidence of heart failure
Please fix the punctuation.
Fixed: [A thoracic radiograph (chest x-ray) might help to determine whether there is enlargement of the heart, or any other evidence of heart failure.]

Question: Success in the flagship pricing tier will be critical in 2018 for Samsung Unless Samsung changes its portfolio strategy IHS Markit forecasts Samsungs smartphone shipments will decline by 26 percent in 2018 compared with overall market growth of 39 percent
Please fix the punctuation.
Fixed: [Success in the flagship pricing tier will be critical in 2018 for Samsung. Unless Samsung changes its portfolio strategy, IHS Markit forecasts Samsung's smartphone shipments will decline by 2.6 percent in 2018 compared with overall market growth of 3.9 percent.]

Question: environmental risk perceived global warming and other natural phenomena can be assessed and in some cases mitigated
Please fix the punctuation.
Fixed:
[environmental risk perceived global warming and other natural phenomena can be assessed and in some cases mitigated]