It is the idea____smiles can get rid of cold ____has been proved by the researchers many times.
| A．which; which | B．that; that | C．that; which | D．which; that |
—What made Tom so sad? —_______.
| A．His bicycle had been stolen | B．His bicycle to be stolen |
| C．His bicycle’s being stolen | D．His bicycle was stolen |
----Are you happy that your old friend visited you yesterday?
----I would rather he_______. I was so busy then.
| A．didn’t | B．hadn’t | C．hasn’t | D．haven’t |
______sounded unimaginable to everyone present was______ she had managed to finish the task in a week.
| A．What; how | B．It; how | C．It; that | D．What; that |
Rather than ______ home, he always prefers _______ on the street when his parents quarrel.
| A．go; wander | B．going; wander | C．go; to wander | D．to go; wandering |
A great many people paid attention to the ______ race in the sports meeting to be held next quarter.
| A．800-metre-long | B．800-metres-long |
| C．800 meter length | D．800 meters length |