Rather than _______ on a crowded bus, he always prefers _______ a bicycle.
| A．ride; ride | B．riding; ride | C．ride; to ride | D．to ride; riding |
His camera is more expensive than ___.
| A．ours | B．our | C．us | D．we |
There is no such ___ person in the world.
| A．a | B．an | C．/ | D．the |
According to a UN report, a third of the world population have no ______ to clean drinking water and health care．
| A．means | B．approach | C．channel | D．access |
-- Why do you look sad?
--There are so many problems _____．
| A．remaining to settle | B．remained settling |
| C．remaining to be settled | D．remained to be settled |
I _____ him not to smoke, but he didn’t think it necessary．
| A．persuaded | B．advised | C．required | D．suggested |