____ a strong and fair climate agreement at the key UN summit in Copenhagen, 50,000 people in London wore blue and went to the streets.
It was not until she failed in the exam ______she realized the importance of study.
________at the restaurant with a wide variety of dishes served before, Bob didn’t want to eat there again.
He was about to tell me the secret ______ someone patted him on the shoulder.
I ________ to visit you later that day, but I had to phone and cancel.
When we saw the road ______ with snow, we decided to spend the holiday at home.