— Have you got any job offers?
— No. I ______.
| A．waited | B．was waiting | C．have waited | D．am waiting |
_________ he met with the difficulty did he realize the importance of our help.
| A．Even though | B．Never until |
| C．Only before | D．Ever since |
Eating too much fat can __________ to heart disease and high blood pressure.
| A．devote | B．attend |
| C．contribute | D．turn |
Due to the unreasonable individual income __________，the gap between the rich and poor has become an outstanding issue.
| A．contribution | B．association |
| C．accommodation | D．distribution |
He contributed an article __________ China Daily.
| A．for | B．about | C．on | D．to |
Thomas Alva Edison was __________ American inventor and __________ businessman who developed many devices, such as __________ bulb, that greatly influence life worldwide.
| A．the; a; the | B．an; a; / |
| C．an; /；the | D．an; the; / |