Would you please keep silent? The weather report and I want to listen. [ ]

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

The CEO decided to give the job to he believed had a strong sense of responsibility.

I don’t know the reason _______ you were absent from the meeting, and I am not sure that someone will tell me the reason _______ you haven’t told me.

Michael was late for MrSmith’s oral class this morning.-How come? ________ I know, he never came late to class.[ ]