26.To our great joy, it snowed_______ the night of Feb.14 this year in Shanghai, arousing the curiosity of the residents.
If you don’t go swimming this afternoon, she won’t go. _____.
When we got to the airport, the plane was starting _____.
The river _____ are covered with trees is very long.
-----Tim, please don’t talk in class. -----Pardon? -----I _____ talk in class.
When Jack arrived, he learned Mary _____ for almost an hour.