I don’t know who invented __________ telescope, but I think it is __________ most useful invention.
Mathilde lost the necklace ______ the evening when she and her husband took part in the palace ball.
Only when the war was over_______ to his hometown. A. did the young soldier return B the young soldier returned C. returned the young soldier D the young soldier returned
______no need for us to discuss the problem again since it has already settled.
The windows haven’t cleaned for a long time.They need ______.
–That would mean ____ a lot of time. --Really? I don’t mean ____ any time.