While he was investigating ways to improve the telescope, Newton made ______ discovery which completely changed ______ man’s understanding of colour.
| A．a; 不填 | B．a; the | C．不填; the | D．the; a |
. —Have you persuaded him?
—Yes. After some hours of discussion, I______to reason him in accepting the new plan.
| A．had managed | B．would manage | C．have managed | D．managed |
A man who shows no honour should expect ______ from a gentleman.
| A．no one | B．nothing | C．no | D．none |
“ ________ to Michelle and having two beautiful girls in my house never allows me to look down upon women,” said Obama.
| A．Marrying | B．Having married | C．Being married | D．Married |
. — When will you leave for Paris for a visit?
—____ next month.
| A．Until | B．In | C．At | D．After |
Whether one is happy or not depends less on money or on health than ______ on your ability to have fun.
| A．it is | B．it does | C．it did | D．it was |