Sometimes our opinions differ _______ what we choose to observe and how we deal with what we’ve observed
| A．which | B．since |
| C．because | D．because of |
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 |
-- Could I have a word with you?
-- Sorry, I am busy ________．Shall we do it later?
| A．at the moment | B．for a momentk+s-5#u |
| C．the moment | D．in a moment |