________ he is the last man I wanted to see, I did my best to help him.
A. As B. Now that
C. AlthoughD. However
He tried his best to solve the problem, ________ difficult it was．
A. however B. no matter
C. whatever D. although
Mo Yan was awarded the Nobel Prize for Literature in 2012, ________ made one of the Chinese people’s long-held dreams come true.
A. it B. that
C. what D. which
The fires burned for three days, ________ a total of 25,000 buildings.
A. destroyed B. to destroy
C. having destroyed D. destroying
Tom took a taxi to the airport, only ________ his plane high up in the sky.
A. to find B. finding
C. being found D. to have found
Li Na is a Chinese tennis player, who is said ________ the world championship last year.
A. to win B. to have won
C. won D. to have been won
