Had it been possible, I would have gone to attend Monica in the hospital, but I fully occupied last month.
| A．had been | B．was | C．am | D．have been |
--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．however | D．even if |
________ he is the last man I wanted to see, I did my best to help him.
| A．As | B．Now that |
| C．Although | D．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 |