_____, I think, and the problems could be settled.
| A．If you double your efforts |
| B．So long as you keep up your spirits |
| C．Making greater efforts |
| D．A bit more efforts |
In ________ early 1990's, as ________ gesture of appreciation, the library was named after the businessman who donated most of the money with which to build it.
| A．the; a | B．the; the |
| C．/; the | D．an; / |
Don't touch ________ live wire, or you will get ________ shock.
| A．the; the | B．the; a |
| C．/; a | D．/；/ |
Mr. White, who comes from ________ European country, has formed ________ habit of attending ________ church on Sundays.
| A．an; /; the | B．a; the; / |
| C．an; the; / | D．a; a; a |
Because of ________ high demand for Type AB blood, ________ supplies of it are usually limited.
| A．the; the | B．不填；不填 |
| C．不填；the | D．a; the |
I didn’t make sense of ________ poem until I read it ________ third time.
| A．the; the | B．a; the |
| C．the; a | D．a, a |