So excited were my classmates__________ the good result of the English speech competition!
A．to know B．known C．to be known D．having known
The emergency center is in great need of O-type blood，but there is__________ at hand.
A．nothing B．none C．any D．much
South Korean pop singer Chae Yeon came to Beijing on March 18th to__________ her new album My Love．
A．relieve B．release C．collect D．investigate
Nelson Mandela__________ peacefully at his Johannesburg home on Thursday，President Jacob Zuma said.
A．dies B．died C．has died D．had died
“Rubber Duck”,________ by Dutch artist Florentijn Hofman，has visited many cities since 2007．
A．being created B．creating C．created D．having created
Of the two-child policy，_________ some see the bright side，others worry about a baby
boom in China．
A．while B．when C．since D．once
