6. The ________ goal of the book is to help bridge the gap between research and teaching， particularly between researchers and teachers.

A) intensive B) concise C) joint D) overall

7. Their products are frequently overpriced and ________ in quality.

A) influential B) inferior C) superior D) subordinate

8. The neighborhood boys like to play basketball on that ________ lot.

A) valid B) vacant C) vain D) vague

9. These people once had fame and fortune; now ________ is left to them is utter poverty.

A) all that B) all what C) all which D) that all

10. To our ________， Geoffrey‘s illness proved not to be as serious as we had feared.

A) anxiety B) relief C) view D) judgment

6-10 DBCAB