QUES: The BERNINA 930 is the first model with a stretch stitch function and an especially powerful engine

correct the punctuation.

CORRECTED: The BERNINA 930 is the first model with a stretch stitch function and an especially powerful engine.

QUES: Radisson Blu Hotel is a design property located in a quiet area 10 minutes walk from Viale Certosa It offers a free health club and modern rooms with flatscreen satellite TV and free WiFi

correct the punctuation.

CORRECTED: Radisson Blu Hotel is a design property located in a quiet area 10 minutes' walk from Viale Certosa. It offers a free health club, and modern rooms with flat-screen satellite TV and free Wi-Fi. ...

QUES: Delay in periods especially if you always have your periods on time

correct the punctuation.

CORRECTED:
Delay in periods, especially if you always have your periods on time.