With a lot of problems , the VS troops are having a hard time in Iraq.
| A．settled | B．being settled | C．settling | D．to settle |
-----What do you remember Alexander Graham Bell as?
------As ______ inventor of ______ telephone.
| A．an; / | B．the; a | C．the; the | D．/; the |
Recently some studies have found that learning ____________ second language can lead to _______________ increase in one’s brain power.
| A．a; the | B．不填; the | C．a; an | D．the; an |
In china,______pressure to pass _______exams gives students the impression that learning comes from textbooks.
| A．/; / | B．the; the | C．the; / | D．/; the |
All these changes will lead to ________ strong and powerful China, ________country that can surprise and enrich our planet.
| A．a; a | B．the; a | C．the; the | D．a; the |
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 |