— It’s _______, Dad. Can I watch TV for half an hour? — OK.
We can easily become unhappy_____ we work out our problems in our daily life.
I’ ll never forget the day_____ the great scientist came to our school and gave us a speech.
Last year was a hard time to my friend Jim, but he didn’t_____ hope.
_____you do, don’t miss this exhibition, for it’s so hard for me to get the tickets.
This morning I had hardly got to my school when it_____ to rain.