How I wish I had studied harder when I was in senior school! —If you had，you ________ a university student now.

I went to your home at 4 pm yesterday, but nobody was in.— Oh, I football with my friends in the park then.

The explorer could not even strike a match, ________ after the long journey on the freezing day.

Do the Winter Olympics have similar events to______in the Summer Olympic Games— No. Winter Olympic Games only include winter sports.

Rick ______ a lot about Chinese culture since he came to China.