By careful observation and precise calculation, Nicolaus Copernicus _____ that there is no one center in the universe and the sun is the center of the solar system.
| A．believed | B．thought | C．concluded | D．imagined |
—____ you got to know I traveled to USA?
—Through one of your colleagues.
| A．Where it was that |
| B．When was it that |
| C．How was it that |
| D．Why was it that |
Having failed in many attempts,the bird _____managed to escape from the cage.
| A．suddenly | B．naturally |
| C．immediately | D．eventually |
— Oh,you haven’t read my e-mail?
—Sorry,I haven’t had any____ to the computer these days.
| A．aids | B．basis |
| C．access | D．beliefs |
____house in this district has heating in winter seasons.
| A．No any | B．Not every |
| C．Not all | D．All not |
I have been fortunate to find a career that I love and ____ ,I can walk to work within 10 minutes.
| A．what is more | B．in other words |
| C．as a result | D．on the contrary |