______ comfortably in his armchair, the old man enjoyed the light music over the radio with his eyes half ______.
| A．Seating; closed | B．Seated; closed | C．Sitting; close | D．Sat; closing |
It is ___world of wonders, _____world where anything can happen.
| A．a. the | B．a, a | C．the, a | D．/,/ |
While he was investigating ways to improve the telescope Newton made _______discovery which completely changed ____ man’s understanding of color.
a ,/ B. a ,the C. /, the D. the ,a
The most important thing about cotton in history is ___part that it played in ____Industrial Revolution.
| A．/,/ | B．the,/ | C．the , the | D．a ,the |
When he left _____college ,he got a job as ______reporter in a newspaper office .
A. /, a B /, the C. a, the D. the,, the
____on-going division between English –speaking Canadians and French-speaking Canadians is _______major concern of the country.
| A．The, / | B．The, a | C．An, the | D．An, / |