Man-made-satellites______ into space by many countries.
The building around the corner caught fire last night. The police are now____ the matter.
The man who was being followed stopped from time to time ____ he wanted to tie his shoelaces.
He was found to be a thief, ____ disappointed his wife.
Every day the mother seems to be busy until 10 o’clock at night, ____the rest of the family have fallen asleep.
We have to delay the party till next week, ____ we will not have something important to do. A. when B. which C. at which D that