____ he met with the difficulty did he realize that our help was of great importance
—Your mother becomes more and more forgetful. —Yes. She searched for her cellphone for a whole day last Sunday but it ______ in her coat pocket the next day.
Would any one of you please tell me ______ to the railway station?
The company was named Gates Hall ______ a man named James Gates.
When we were young, every evening my brother and I ______ stay at home waiting for our mother.
I am looking forward to ______ your answer as soon as possible.