It’salready10o’clock. I wonder how it that she was two hours late on such a short trip.

2，Columbus_______ on the of theBahama islands, but he mistook it for an island off India

During the opening ceremony, “Miss smile” has won the hearts of Chinese Internet users after being caught _________ the same smile for nearly 20minutes.

I ______ terrible, so I decided ______ a doctor.

_______you are familiar with the author’s ideas, try reading all the sections as quickly as you can[ ]