--If we don’t do our best to reduce pollution, man’s history won’t last long.
--_________.
A. It’s OK B. You are absolutely right
C. That’s all right D. Mind your own business
He likes sports, ________ I’d rather play games on computers.
A. as B. while
C. howeverD. even if
________ 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
