It is easy to be grateful for the good things, ______ a life of rich fulfillment comes to those who are also thankful for the setbacks.
| A．that | B．which | C．while | D．when |
Professor White has written some short stories, but he is________known for his plays.
| A．the best | B．more | C．better | D．the most |
These oranges taste________.
| A．good | B．well | C．to be good | D．to be well |
“Do you regret paying five hundred dollars for the painting?”“No, I would gladly have paid______for it.”
| A．twice so much | B．twice as much |
| C．as much twice | D．so much twice |
Smoking is so harmful to personal health that it kills_____people each year than automobile accidents.
| A．seven more times | B．seven times more |
| C．over seven times | D．seven times |
After the new technique was introduced，the factory produced ___ tractors in 1988 as the year before.
| A．as twice many | B．as many twice | C．twice as many | D．twice many as |