After four years’ research, we now have a ______ better understanding of the disease.
| A．very | B．far | C．fairly | D．quite |
| A．gave out | B．gave away | C．gave up | D．gave off |
| A．enterprise | B．ambition | C．aspiration | D．Admiration |
| A．stand | B．stands | C．to stand | D．to stands. |
| A．what | B．that | C．which | D．Why |
—Sorry, he isn’t in. This is his assistant speaking. Can I help you?.
—______.
| A．Oh, you can | B．Oh, it’s a pity |
| C．I hope to see him soon | D．I should think so |