The situation at Omaha Beach was so bad _______ the soldiers succeeded in landing on the beach with a lot of people losing their lives.
She said she would spend her holiday ___ Beijing.
Whenever I go to Beijing, ____ is quite frequent, I will go to visit the Great Wall.
The two boys fought and fought until one ______.
He will _____ our class to sing at the school singing contest.
John _____ knowledge of radio just by staying around the radio station.