The fact has worried the people across the world ___________ the earth is becoming warmer and warmer these years.
| A．what | B．which | C．that | D．where |
—Hi, Susan, you look tired.
—I ______ for months for the coming celebration for the school’s 60th anniversary.
| A．was preparing | B．have been preparing | C．had prepared | D．prepare |
Look! If we had begun to do the work yesterday morning, we _______ ourselves just like them．
| A．would have enjoyed | B．were to enjoy |
| C．should enjoy | D．would be enjoying |
Carter was saying all the right things, but his smile was __________, and I knew I couldn't trust him.
| A．preferential | B．artificial | C．confidential | D．beneficial |
—Remember how we met for the first time, Dick?
—Of course I do. You _______ to the teachers' office hurriedly and _________ me.
| A．had walked; weren't noticing | B．were walking; didn't notice |
| C．had been walking; noticed | D．walked; had noticed |
Mo Yan's winning of 2012 Nobel Prize in Literature shows the world's ________ of China's contemporary literature.
| A．recognition | B．intention | C．connection | D．application |